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BROADBAND DIFFRACTIVE LENS OR IMAGING ELEMENT

07/587,699 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Sept. 25, 1990
Examiner JAY RYAN
Class 999
Art Group 2507
Patent No. 5,071,207
Case Type Utility - 999/003700
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child 07/683,592 Patented
Last Updated: 5 years, 1 month ago
Date # Transaction