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PROJECTION DISPLAY SYSTEM INCLUDING A COLLIMATING TAPERED WAVEGUIDE OR LENS WITH THE NORMAL TO OPTICAL AXIS ANGLE INCREASING TOWARD THE LENS CENTER

08/50,909 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed April 21, 1993
Examiner ANITA P GROSS
Class 359
Art Group 2515
Patent No. 5,459,592
Case Type Utility - 359/040000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child 4-106793
Child 4-155415
Child 4-163026
Last Updated: 4 years, 9 months ago
Date # Transaction