IP Library › Patent Application 09831597
Patent Application Utility PCT National Stage
App. No. 09/831,597 · Confirmation No. 7070

COLOR CORRECTED PROJECTION LENSES EMPLOYING DIFRACTIVE OPTICAL SURFACES

Inventor: Melvyn H Kreitzer
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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2001-05-11 LET. Miscellaneous Incoming Letter 35 View
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Quick Facts
App. No.
09/831,597
Filed
2001-05-11
Granted
2003-03-04
Art Unit
2872
PTA
0 days