Attorney Docket No. IP 149.1
`
`PATENT
`
`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`In re Applicationof:
`Reiteret al.
`
`Appln. No. 13/311,735
`
`Filed: December6, 2011
`
`For:
`
`CHAINRING
`
`Commissionerfor Patents
`P.O. Box 1450
`Alexandria, VA 22313-1450
`
`:
`
`;
`
`Art Unit: 3654
`
`Examiner: Henry Y. Liu
`
`Amendment and Response
`
`Sir:
`
`In response to the Office Action dated November4, 2014, Applicants submit the following
`
`remarks in this request for reconsideration.
`
`Amendments to the Claimsstart on page 2 ofthis paper.
`
`Remarks start on page 26 of this paper.
`
`PAGE499 OF 1056
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`PAGE 499 OF 1056
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`
`
`PATENT
`
`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`In re Applicationof:
`Reiteret al.
`
`Appln. No. 13/311,735
`
`Filed: December6, 2011
`
`For:
`
`CHAINRING
`
`Commissionerfor Patents
`P.O. Box 1450
`Alexandria, VA 22313-1450
`
`:
`
`;
`
`Art Unit: 3654
`
`Examiner: Henry Y. Liu
`
`Amendment and Response
`
`Sir:
`
`In response to the Office Action dated November4, 2014, Applicants submit the following
`
`remarks in this request for reconsideration.
`
`Amendments to the Claimsstart on page 2 ofthis paper.
`
`Remarks start on page 26 of this paper.
`
`PAGE499 OF 1056
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`PAGE 499 OF 1056
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`Serial No. 13/311.735
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`1,—57. (Canceled)
`
`AMENDMENT TO CLAIMS
`
`58.
`
`(Twice Amended) A bicycle chainring of a bicycle crankset for engagement with a drive chain,
`
`comprising:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`the plurality of teeth including a first group of teeth and a second group ofteeth, each ofthefirst
`
`group of teeth wider than each of the second group ofteeth; and
`
`at least some of the second groupof teeth arranged alternatingly and adjacently between thefirst
`
`group of teeth,
`
`wherein the drive chain is a roller drive chain including alternating outer and inner chain links
`
`defining outer and innerlink spaces, respectively;
`
`wherein each of the first group of teeth is sized and shaped to fit within one of the outer link
`
`spaces and each of the second group of teeth is sized and shaped to fit within one of the innerlink
`
`spaces; and
`
`wherein eachofthe first group ofteeth fills at least 75 percent of an axial distance defined by the
`
`outer link spaces:and
`
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`59.
`
`(Previously Presented) The bicycle chainring of claim 58, wherein the chainring is a solitary
`
`chainring.
`
`60. (Canceled)
`
`PAGE500 OF 1056
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`Serial No, 13/311,735
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`61.
`
`(Previously Presented) The bicycle chainring of claim 58, wherein each ofthe first group ofteeth
`
`fills at least 80 percent ofan axial distance defined by the outerlink spaces.
`
`62.
`
`(Previously Presented) The bicycle chainring of claim 58, wherein each ofthe first group of teeth
`
`fills at least 85 percent of an axial distance defined by the outer link spaces.
`
`63. (Previously Presented) The bicycle chainring of claim 58, wherein each ofthe first groupof teeth is
`
`wider than the innerlink spaces.
`
`64.
`
`(Twice Amended) A bicycle chainring of a bicycle crankset for engagement with a drive chain,
`
`comprising:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`the plurality of teeth including a first group of teeth and a second group ofteeth, each ofthe first
`
`group of teeth wider than each ofthe second groupofteeth; and
`
`at least some of the second group of teeth arranged alternatingly and adjacently betweenthefirst
`
`group of teeth;
`
`wherein the drive chain is a roller drive chain including alternating outer and inner chain links
`
`defining outer and innerlink spaces, respectively;
`
`wherein each ofthe first group of teeth is sized and shaped to fit within one ofthe outer link
`
`spaces and each of the second group ofteeth is sized and shaped to fit within one of the inner link
`
`spaces;
`
`wherein each ofthe plurality of teeth includes an outboard side and an inboard side opposite the
`
`outboard side and one ofthe inboard and outboard sides of each of the second group ofteeth includes a
`
`link-receiving recess formed in the chainring; and
`
`PAGE501 OF 1056
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`PAGE 501 OF 1056
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`Serial No, 13/311,735
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`wherein each link-receiving recess is defined by a circumferentially-extending base surface that
`
`extends to a top land of each of the first group of teeth and by a radially-extending wall that extends to a
`
`top land of each of the second group ofteeth: and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`65.
`
`(Previously Presented) The bicycle chainring of claim 64, wherein each base surface of each link-
`
`receiving recess is generally U-shaped.
`
`66.
`
`(Previously Presented) The bicycle chainring of claim 64, wherein each link-receiving recess
`
`extends fromafront flank of a first tooth of the first group of teeth to a rear flank of a second tooth of
`
`the first group of teeth, and wherein the first tooth and the second tooth are adjacent ones ofthe first
`
`eroup of teeth in a drive direction.
`
`67.
`
`(Previously Presented) The bicycle chainring of claim 64, wherein each ofthe first group of teeth
`
`includes a first protrusion on one of the outboard side and the inboard side thereof, the link-receiving
`
`recess defined at least in part by the first protrusion.
`
`68. (Previously Presented) The bicycle chainring ofclaim 67, wherein the first protrusions fit within the
`
`outer link spaces.
`
`69.
`
`(Previously Presented) The bicycle chainring of claim 67, wherein each of the first protrusions is
`
`formed as a single-piece construction with a respective one ofthe first group ofteeth,
`
`PAGE502 OF 1056
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`PAGE 502 OF 1056
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`Serial No, 13/311,735
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`70. (Previously Presented) [he bicycle chainring of claim 67, wherein each of the second group ofteeth
`
`is arranged alternatingly and adjacently betweeneachofthe first group ofteeth.
`
`71,
`
`(Previously Presented) The bicycle chainring of claim 64, wherein the circumferentially-extending
`
`base surface and the radially-extending wall are generally smooth.
`
`72. (Previously Presented) The bicycle chainring of claim 64, wherein eachofthe first group ofteeth
`
`fills at least 75 percent ofan axial distance defined by ihe outer link spaces.
`
`73.
`
`(Twice Amended) The bicycle chainring of claim 67, wherein each of the first group ofteeth
`
`includes a second protrusion on the other of the outboard side and the inboard side; and
`
`wherein the first protrusions each have a first width and the second protrusions each have a
`
`second width.
`
`74.
`
`(Previously Presented) The bicycle chainring of claim 73, wherein each ofthe first group ofteeth
`
`fills at least 75 percent of an axial distance defined by the outerlink spaces.
`
`75. (Canceled)
`
`76.
`
`(Previously Presented) The bicycle chainring of claim 64, wherein the chainring is a solitary
`
`chainring.
`
`77,—79,. (Canceled)
`
`80. (Withdrawn)
`
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`Serial No. 13/311,735
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`81.
`
`(Previously Presented) The bicycle chainring of claim 73, wherein each of the first group of teeth
`
`have a cross-shaped cross section adjacenta top land thereof.
`
`82. (Previously Presented) The bicycle chainring ofclaim 81, wherein each of the second groupofteeth
`
`have a rectangular-shaped cross section adjacenta topland thereof.
`
`83. (Canceled)
`
`84.
`
`(Twice Amended) A bicycle chainring of a bicycle crankset for engagement with a drive chain,
`
`comprising:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`the plurality of teeth including a first group of teeth and a second group ofteeth, each ofthe first
`
`group of teeth wider than each of the second group of teeth; and
`
`at least some of the second group of teeth arranged alternatingly and adjacently between thefirst
`
`group ofteeth;
`
`wherein each ofthe plurality of teeth includes an outboard side and an inboard side opposite the
`
`outboard side and each of the first group of teeth includes at least a first protrusion on one ofthe
`
`outboard side and the inboard side;
`
`wherein each ofthe first group ofteeth and each of the second group of teeth includes a front
`
`flank:
`
`wherein the front flank includes a contact zone where a roller of the chain contacts the front
`
`flank; and
`
`PAGE504 OF 1056
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`PAGE 504 OF 1056
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`Serial No. 13/311,735
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`wherein the front flank includes a protruding tip portion configured to guide the chain and that
`
`protrudes at an angle forward from the contact zone forthe front flank; and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`85.
`
`(Twice Amended) The bicycle chainring of claim 84, wherein each ofthe first group ofteeth and
`
`each of the second group of teeth includes a rear flank, and wherein the rear flank includes a hook
`
`portion configured to guide the chain,
`
`86.
`
`(Previously Presented) The bicycle chainring of claim 84, wherein each of the first group of teeth
`
`includes a radially outer chamfer havingafirst extent along substantially all of the upper portion of the
`
`outboard side of each tooth.
`
`87. (Previously Presented) The bicycle chainring of claim 86, wherein each of the second group ofteeth
`
`includes a radially outer chamfer having a second extent along substantially all of the upper portion of
`
`the outboard side of each tooth.
`
`88.
`
`(Previously Presented) The bicycle chainring of claim 87, wherein the first extent is lesser than the
`
`second extent.
`
`89.
`
`(Twice Amended) A bicycle chainring of a bicycle crankset for engagement with a drive chain,
`
`comprising:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`the plurality of teeth including a first group of teeth and a second group of teeth, each of the first
`
`sroup ofteeth wider than each of the second group ofteeth; and
`
`J
`
`PAGE505 OF 1056
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`PAGE 505 OF 1056
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`Serial No, [3/311,735
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`at least some of the second group ofteeth arranged alternatingly and adjacently betweenthe first
`
`groupof teeth:
`
`wherein each ofthe first group of teeth and each of the second group of teeth includes a front
`
`flank and a rear flank:
`
`wherein the front flank of each tooth includes a contact zone where a roller of the chain contacts
`
`the front flank; and
`
`wherein the front flank of each tooth includes a protruding tip portion that protrudes at an angle
`
`forward from the contact zone for the front flank;and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon,
`
`90,
`
`(Previously Presented) The bicycle chainring of claim 89, wherein the rear flank of each tooth
`
`includes a hook portion.
`
`91,
`
`(Previously Presented) The bicycle chainring of claim 90, wherein the hook portion includes a
`
`generally radially-oriented portion.
`
`92.
`
`(Previously Presented) The bicycle chainring of claim 91, wherein the protruding tip portion and an
`
`adjacent tooth hook portion cooperate to guide the drive chain.
`
`93.
`
`(Twice Amended) A bicycle chainring of a bicycle crankset for engagement with a drive chain,
`
`comprising:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`the plurality ofteeth including a first group of teeth and a second group ofteeth, eachofthefirst
`
`group ofteeth widerthan each of the second group of teeth; and
`
`8
`
`PAGE506 OF 1056
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`PAGE 506 OF 1056
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`Serial No. 13/311,735
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`at least some ofthe second group ofteeth arranged alternatingly and adjacently betweenthe first
`
`group ofteeth;
`
`wherein each of the plurality of teeth includes an outboard side and an inboard side opposite the
`
`outboard side and one of the inboard and outboard sides of each of the second group of teeth includes a
`
`link-receiving recess: and
`
`wherein each link-receiving recess is defined by a circumferentially-extending base surface that
`
`extends to a top land of each ofthe first group of teeth and by a radially-extending wall that extends to a
`
`top land ofeach of the second group ofteeth; and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`94,
`
`(Previously Presented) The bicycle chainring of claim 93, wherein each link-receiving recess
`
`extends from a front flank of a first tooth of the first group of teeth to a rear flank of a second tooth of
`
`the first group of teeth, wherein the first tooth and the second tooth are adjacent ones of the first group
`
`of teeth in a drive direction.
`
`95.
`
`(Twice Amended) The bicycle chainring of claim 93, wherein each of the first group of teeth
`
`includes a first protrusion on the outboard side and a second protrusion on the inboard side, one ofthe
`
`first and second protrusions defined at least in part by the link-receiving recess,
`
`96,
`
`(Previously Presented) The bicycle chainring of claim 95, wherein each ofthe first protrusions and
`
`each of the second protrusions is formed as a single-piece construction with a respective oneofthe first
`
`group of teeth,
`
`PAGE507 OF 1056
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`PAGE 507 OF 1056
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`Serial No. 13/311,735
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`97. (Previously Presented) The bicycle chainring of claim 95, wherein each of the second group ofteeth
`
`is arranged alternatingly and adjacently between eachofthe first group of teeth,
`
`
`
`98. (Previously Presented) The bicycle chainring of claim 95, wherein the first protrusion hasafirst
`
`width and the second protrusion has a second width, whereinthe first width is equal to the second width,
`
`99. (Withdrawn)
`
`100.
`
`(Previously Presented) The bicycle chainring of claim 93, wherein each ofthe first group of teeth
`
`has a cross-shaped cross section adjacent a top landthereof.
`
`101.
`
`(Previously Presented) The bicycle chainring of claim 93, wherein each of the second group of
`
`teeth has a rectangular-shaped cross section adjacent a top landthereof.
`
`102,
`
`(Twice Amended) The bicycle chainring of claim 93, wherein each ofthe first group of teeth and
`
`the second group of teeth includes a front flank, and wherein the front flank includes a protruding tip
`
`portion configured to guide the chain.
`
`103.
`
`(Twice Amended) The bicycle chainring of claim 93, wherein each of the first group of teeth and
`
`the second group of teeth includes a rear flank, and wherein the rear flank includes a hook portion
`
`configured to guide the chain.
`
`PAGE508 OF 1056
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`PAGE 508 OF 1056
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`Serial No. 13/311,735
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`104.
`
`(Twice Amended) The bicycle chainring of claim 93, wherein each of the first group of teeth and
`
`the second group of teeth includes a front flank and a rear flank, wherein the front flank of each tooth
`
`includes a protruding tip portion.
`
`105,
`
`(Previously Presented) Thebicycle chainring of claim 104, wherein the rear flank of each tooth
`
`includes a hookportion.
`
`106.
`
`(Previously Presented) The bicycle chainring of claim 105, wherein the hook portion includes a
`
`generally radially-oriented portion.
`
`107.
`
`(Previously Presented) The bicycle chainring of claim 105, wherein the protrudingtip portion and
`
`an adjacent one of the hook portions cooperate to guide the chain,
`
`108.
`
`(Previously Presented) The bicycle chainring of claim 93, wherein eachofthe first group of teeth
`
`includesa radially outer chamfer having a first extent along substantially all of the upper portion of the
`
`outboard side of each tooth.
`
`109.
`
`(Previously Presented) The bicycle chainring of claim 93, wherein each of the second group of
`
`teeth includesa radially outer chamfer having a second extent along a first extent along substantially all
`
`of the upper portion ofthe outboard side of each tooth,
`
`110. (Previously Presented) The bicycle chainring of claim 93, wherein the first extent is lesser than the
`
`second extent.
`
`PAGE509 OF 1056
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`PAGE 509 OF 1056
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`Serial Ne. 13/311,735
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`111.
`
`(Previously Presented) The bicycle chainring of claim 93, wherein the link-receiving recess is
`
`formed by a circumferentially-extending base surface and a radially-extending wall.
`
`112.
`
`(Previously Presented) The bicycle chainring of claim 93, wherein the drive chain is a roller drive
`
`chain including alternating outer and inner chain links defining outer and innerlink spaces,respectively;
`
`and wherein eachofthe first group ofteeth fills at least 75 percent ofan axial distance defined by the
`
`outerlink spaces.
`
`113,
`
`(Previously Presented) The bicycle chainring of claim 93, wherein the chainring is a solitary
`
`chainring.
`
`114. (Previously Presented) The bicycle chainring of claim 93, wherein the circumferentially-extending
`
`base surface and the radially-extending wall are generally smooth.
`
`115.
`
`(Previously Presented) The bicycle chainring of claim 84, wherein the drive chain is a roller drive
`
`chainincluding alternating outer and innerchainlinks defining outer and innerlink spaces, respectively;
`
`and wherein the each ofthe first group ofteeth fills at least 75 percent of an axial distance defined by
`
`the outerlink spaces.
`
`116,
`
`(Twice Amended) The bicycle chainring ofclaim 84, wherein efthe-frstthe chainring ts a solitary
`
`chainring.
`
`117.
`
`(Previously Presented) Thebicycle chainring of claim 89, wherein the drive chain is a roller drive
`
`chain including alternating outer and innerchain links defining outer and innerlink spaces, respectively;
`
`12
`
`PAGE510 OF 1056
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`PAGE 510 OF 1056
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`Serial No. 13/311.735
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`and wherein each of the first group ofteeth fills at least 75 percent of an axial distance defined by the
`
`outerlink spaces.
`
`118.
`
`(Previously Presented) The bicycle chainring of claim 89, wherein the chainring is a solitary
`
`chainring.
`
`119.—121. (Canceled)
`
`122. (Twice Amended) A bicycle drivetrain comprising:
`
`a roller drive chain including alternating outer and inner chain links defining outer and innerlink
`
`spaces, respectively; and
`
`a bicycle chainring including:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`the plurality of teeth includinga first group of teeth and a second group ofteeth;
`
`eachofthe first group of teeth wider than each of the second groupofteeth; and
`
`at least some of the second group of teeth arranged alternatingly and adjacently between
`
`the first proup ofteeth;
`
`wherein each ofthe first group ofteeth is sized and shaped to fit within one of the outer
`
`link spaces, and each of the second group of teeth is sized and shaped to fit within one of the
`
`innerlink spaces:
`
`wherein each of the plurality of teeth includes an outboard side and an inboard side
`
`opposite the outboard side and one of the inboard and outboard sides of each of the second group
`
`ofteeth includes a link-receiving recess; and
`
`13
`
`PAGE 511 OF 1056
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`PAGE 511 OF 1056
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`Serial No, 13/311.735
`
`wherein each link-receiving recess is defined by a circumferentially-extending base
`
`surface that extends to a top land of each ofthe first group of teeth and by a radially-extending
`
`wall that extends to a top land of each of the second groupof teeth; and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`123. (Previously Presented) The bicycle drivetrain of claim 122, wherein each base surface of each link-
`
`receiving recess is generally U-shaped.
`
`124.
`
`(Previously Presented) The bicycle drivetrain of claim 122, wherein each link-receiving recess
`
`extends from a front flank ofa first tooth of the first group of teeth to a rear flank of a second tooth of
`
`the first group of teeth, wherein the first tooth and the second tooth are adjacent ones ofthe first group
`
`of teeth in a drive direction,
`
`125. (Previously Presented) The bicycle drivetrain of claim 122, each ofthefirst group of teeth includes
`
`a first protrusion on one of the outboard side and the inboard side thereof, the link-receiving recess
`
`defined at least in part by the first protrusion.
`
`126. (Previously Presented) The bicycle drivetrain of claim 125, wherein the first protrusions fit within
`
`the outer link spaces.
`
`127.
`
`(Previously Presenied) The bicycle drivetrain of claim 125, wherein each ofthe first protrusions is
`
`formed as a single-piece construction with a respective oneofthefirst group ofteeth.
`
`14
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`Serial No. 13/311,735
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`128.
`
`(Previously Presenied) The bicycle drivetrain of claim 125, wherein each of the second group of
`
`teeth is arranged alternatingly and adjacently between eachofthe first group ofteeth,
`
`129. (Previously Presented) The bicycle drivetrain of claim 122, wherein the drivetrain includes a
`
`solitary bicycle chainring.
`
`130. (Previously Presented) ‘he bicycle drivetrain of claim 122, whereineachof thefirst group of teeth
`
`fills at least 75 percent of an axial distance defined by the outerlink spaces.
`
`131.
`
`(Previously Presented) The bicycle drivetrain of claim 122, wherein the circumferentially-
`
`extending base surface and the radially-extending wall are generally smooth.
`
`132,— 140. (Canceled)
`
`141. (Twice Amended) A bicycle chainring, for engagement with a roller drive chain having alternating
`
`outer and inner chain links defining outer and innerlink spaces, respectively, the chainring comprising:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`the plurality of teeth including a pair offirst teeth spaced apart by an adjoining second tooth to
`
`form an arrangement thereof;
`
`wherein the first teeth fit within the outer link spaces and the second tooth fits within the inner
`
`link spaces; and
`
`wherein the first teeth are wider than the innerlink spaces;
`
`PAGE 513 OF 1056
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`PAGE 513 OF 1056
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`Serial No, 13/311,735
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`wherein each of the plurality of teeth includes an outboard side and an inboard side opposite the
`
`outboard side and one of the inboard and outboard sides of the second tooth includes a link-receiving
`
`recess; and
`
`wherein each link-receiving recess is defined by a cireumferentially-extending and generally
`
`smooth base surface that extends to a top land of each of the first teeth and by a radially-extending and
`
`generally smooth wall that extends to a top land of each of the second teeth:and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`142.
`
`(Previously Presented) The bicycle chainring of claim 141, wherein the plurality of teeth number
`
`20 or more teeth.
`
`143,
`
`(Twice Amended) The bicycle chainring of claim 142, wherein each of the plurality of first teeth
`
`includes an outboard side and an inboard side opposite the outboard side and each ofthe first teeth
`
`includes at least a first protrusion on one of the outboard side and the inboardside.
`
`144,
`
`(Previously Presented) The bicycle chainring of claim 143, wherein the first protrusions fit within
`
`the outer link spaces.
`
`145,
`
`(Previously Presented) The bicycle chainring of claim 143, wherein each ofthe first protrusionsis
`
`formed as a single-piece construction with a respective one ofthe first teeth,
`
`146. (Previously Presented) The bicycle chainring of claim 141, wherein eachofthe plurality of first
`
`teeth fills at least 75 percent of an axial distance defined by the outer link spaces.
`
`PAGE514 OF 1056
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`PAGE 514 OF 1056
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`Serial No. (3/311,735
`
`147. (Previously Presented) The bicycle chainring of claim 141, wherein the chainring is a solitary
`
`chainring.
`
`148.
`
`(Previously Presented) The bicycle chainring of claim 141, wherein the circumferentially-
`
`extending base surface and the radially-extending wall are generally smooth.
`
`149,
`
`(Twice Amended) A bicycle chainring, for engagement with a roller drive chain having
`
`alternating outer and inner chain links defining outer and innerlink spaces, respectively, the chainring
`
`comprising:
`
`a plurality of teeth formed about a periphery of the chainring;
`
`eachofthe plurality of teeth has a cross-shaped cross section adjacent a top land thereofand a cross-
`
`shaped cross section adjacent a base thereof, and
`
`eachof the plurality of teeth is sized and shaped to fit within one of the outerlink spaces; and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`150. (Previously Presented) The bicycle chainring of claim 149, wherein eachofthe plurality ofteeth is
`
`widerthan the inner link spaces.
`
`151.
`
`(Previously Presented) The bicycle chainring of claim 150, wherein adjacent ones ofthe plurality
`
`of teeth are sized and shapedto [i within adjacent outer links spaces.
`
`152.
`
`(Previously Presented) The bicycle chainring of claim 151, wherein the plurality of teeth number
`
`20 or more teeth.
`
`17
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`PAGE 515 OF 1056
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`Serial No, 13/311,735
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`153.
`
`(Previously Presented) The bicycle chainring of claim 152, wherein the plurality of teeth consist of
`
`an even number,
`
`154.
`
`(Twice Amended) The bicycle chainring of claim 153, wherein each ofthe plurality of teeth
`
`includes an outboard side and an inboard side opposite the outboard side and each of the plurality of
`
`teeth includes at least a first protrusion on one ofthe outboard side and the inboard side.
`
`155,
`
`(Previously Presented) The bicycle chainring of claim 154, wherein the first protrusions fit within
`
`the outerlink spaces.
`
`156. (Previously Presented) The bicycle chainring of claim 154, wherein each ofthefirst protrusionsis
`
`formed as a single-piece construction with a respective one of the plurality ofteeth.
`
`157.
`
`(Twice Amended) The bicycle chainring of claim 149, wherein each ofthe plurality of first teeth
`
`includes an outboard side and an inboard side opposite the outboard side and each ofthe first teeth
`
`includesat least a first protrusion on one of the outboard side and the inboard side.
`
`158,
`
`(Previously Presented) The bicycle chainring of claim 157, wherein the first protrusions fit within
`
`the outer link spaces.
`
`159.
`
`(Previously Presented) The bicycle chainring of claim 157, wherein each ofthe first protrusions is
`
`formed as a single-piece construction with a respective oneof the first teeth.
`
`18
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`Serial No, 13/311,735
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`160. (Canceled)
`
`161.
`
`(Previously Presented) The chainring of claim 149, wherein each ofthe plurality offirst teeth fills
`
`at least 75 percent of an axial distance defined by the outer link spaces.
`
`162. (Previously Presented) The chainring of claim 149, wherein the chainringis a solitary chainring,
`
`163. (Withdrawn)
`
`164. (Twice Amended) A solitary chainring of a bicycle front crankset for engaging a drive chain,
`
`comprising:
`
`a plurality of teeth formed about a periphery of the chainring, the plurality of teeth consisting of
`
`an even number;
`
`the plurality of teeth including a first group of teeth and a second group of teeth arranged
`
`alternatingly betweenthe first group of teeth;
`
`wherein the first group of teeth and the second group ofteeth are equal in number;
`
`each of the first and second group of teeth comprising an outboard side and an inboard side
`
`opposite the outboard side:
`
`wherein each tooth of the first group of teeth comprisesat least a first protrusion on the outboard
`
`side thereof and each tooth of the second group ofteeth are free of the first protrusions on the outboard
`
`side and the inboard side: and
`
`wherein the first group of teeth each have a cross-shaped cross section adjacent a top land thereof
`
`and a cross-shaped cross section adjacent a base thereof;and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon.
`
`19
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`165, (Previously Presented) The chainring of claim 164, wherein the second group ofteeth each have a
`
`rectangular-shaped cross section adjacent a top land thereof.
`
`166. (Twice Amended) The chainring of claim 164, wherein each tooth of the first group of teeth and the
`
`second group of teeth includes a front flank, and wherein the front flank includes a protruding tip portion
`
`configured to guide the chain,
`
`167. (Twice Amended) The chainring of claim 164, wherein each tooth ofthe first group of teeth and the
`
`second group of teeth includes a rear flank, and wherein the rear flank includes a hook portion
`
`configured to guide the chain.
`
`168. (Twice Amended) The chainring of claim 164, wherein each tooth of the first group of teeth and the
`
`second group of teeth includes a front flank and a rear flank, wherein the front flank of each tooth
`
`includes a protruding tip portion.
`
`169. (Previously Presented) The chainring of claim 168, wherein the rear flank of each tooth includes a
`
`hook portion.
`
`170, (Previously Presented) The chainring of claim 169, wherein the hook portion includes a generally
`
`radially-oriented portion.
`
`171. (Previously Presented) The chainring of claim 169, wherein the protruding tip portion and an
`
`adjacent tooth hook portion cooperate to guide the chain.
`
`20)
`
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`172. (Previously Presented) The chainring of claim 164, wherein each tooth of the first group of teeth
`
`includes a radially outer chamfer having a first extent a first extent along substantially all of the upper
`
`portion of the outboard side of each tooth.
`
`173. (Previously Presented) he chainring of claim 164, wherein each tooth of the second group ofteeth
`
`includes a radially outer chamfer having a second extent along a first extent along substantially all of the
`
`upperportion of the outboard side of each tooth.
`
`174. (Previously Presented) The chainring of claim 164, wherein the first extent is lesser than the second
`
`extent,
`
`175. (Previously Presented) The chainring of claim 164, wherein each of the inboard and outboard sides
`
`of each of the second group of teeth define a recess formed in the chainring.
`
`176.
`
`(Previously Presented) The chainring of claim 175, wherein each recess is defined by a
`
`circumferentially-extending base surface and a radially-extending wall,
`
`177. (Twice Amended) A solitary chainring of a bicycle front crankset for engaging a drive chain, the
`
`drive chain including interleaved imnerand outer links, the chainring comprising:
`
`a plurality of teeth formed about a periphery of the chainring, the plurality of teeth consisting of
`
`an even number;
`
`the plurality of teeth including a first group of teeth and a second group of teeth arranged
`
`alternatingly betweenthefirst group of teeth:
`
`2]
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`wherein the first group of teeth and the second group ofteeth are equal in number;
`
`wherein each of the first group of teeth is sized and shaped to fit within one of the outerlink
`
`spaces and each of the second group of teeth is sized and shaped to fit within one of the inner link
`
`spaces;
`
`each ofthe first and second group of teeth comprising an outboard side and an inboard side
`
`opposite the outboard side;
`
`wherein each of the outboard side and the inboard side of each of the second group ofteeth
`
`defines a link-receiving recess formed in the chainring along each of the second groupofteeth; and
`
`wherein each link-receiving recess 1s defined by a circumferentially-extending base surface that
`
`extends to a top land of each of the first group of teeth and by a radially-extending wall that extends to a
`
`top land of each of the second group of teeth;and
`
`wherein said chainring is configured to guide and maintain said drive chain thereon,
`
`178. (Previously Presented) The chainring of claim 177, wherein each link-receiving recess extends
`
`from a front flank of a first tooth ofthe first group of teeth to a rear flank of a second tooth ofthefirst
`
`group of teeth, wherein the first tooth and the second tooth are adjacent ones ofthe first proup of teeth in
`
`a drive direction.
`
`179, (Previously Presented) The chainring of claim 177, further comprising a first protrusion on the
`
`outboard side and a second protrusion on the inboard side of each of the first group ofteeth, the first and
`
`second protrusions defined at least in part by the link-receiving recess.
`
`180. (Previously Presented) The chainring of claim 179, wherein the first protrusion has a first width and
`
`the second protrusion has a second width, wherein the first width is equal to the second width.
`
`22
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`181. (Withdrawn)
`
`182. (Previously Presented) The chainring of claim 177, wherein the first group of teeth each have a
`
`cross-shaped cross section adjacent a top land thereof.
`
`183. (Previously Presented) The chainring ofclaim 177, wherein the second group of teeth each have a
`
`rectangular-shaped cross section adjacent a top land thereof.
`
`184, (Twice Amended) The chainring of claim 177, wherein each tooth ofthe first group of teeth and the
`
`second group of teeth includes a front flank, and wherein the front flank includes a protrudingtip portion
`
`configured to guide the chain.
`
`185. (Twice Amended) The chainring of claim 177, wherein each tooth of the first group of teeth and the
`
`second group teeth of includes a rear flank, and wherein the rear flank includes a hook portion
`
`configured to guide the chain.
`
`186. (Twice Amended) The chainring of claim 177, wherein each tooth ofthe first group ofteeth andthe
`
`second group of teeth includes a front flank and a rear flank, wherein the front flank of each tooth
`
`includes a protruding tip portion.
`
`187. (Previously Presented) The chainring of claim 186, wherein the rear flank of each tooth includes a
`
`hook portion.
`
`23
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`Serial No, 13/311,735
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`188. (Previously Presented) The chainring of claim 187, wherein the hook portion includes a generally
`
`radially-oriented portion.
`
`189. (Previously Presented) The chainring of claim 187, wherein the protruding tip portion and an
`
`adjacent one ofthe hook portion cooperate to guidethe chain.
`
`190. (Previously Presented) The chainring of claim 177, wherein each tooth ofthe first group ofteeth
`
`i
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