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R421A LLC

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Kenneth M. Ponder Steffan Thomas, JR.STEFKO PROPERTIES LLC, Assignor

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REFRIGERANT WITH LUBRICATING OIL FOR REPLACEMENT OF R22 REFRIGERANT

12/961,045 | U.S. Patent Application

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Location ELECTRONIC

Filed Dec. 6, 2010

Examiner JOHN R HARDEE

Class 252

Art Group 1761

Patent No. 8,197,706

Case Type Utility - 252/067000

Status Patented Case

Parent 10/937,736 Abandoned

Parent 60/501,049 Expired

Child 13/493,491 Patented

Child 15/989,655 Patented

Child 16/920,905 Patented

Last Updated: 1 year, 4 months ago

Date	#	Transaction
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REFRIGERANT WITH LUBRICATING OIL FOR REPLACEMENT OF R22 REFRIGERANT

12/961,045 | U.S. Patent Application

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