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METHOD AND APPARATUS FOR INCREASING EFFECTIVE CONTRAST RATIO AND BRIGHTNESS YIELDS FOR DIGITAL LIGHT VALVE IMAGE PROJECTORS

12/541,248 | U.S. Patent Application

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Location ELECTRONIC
Filed Aug. 14, 2009
Examiner MUSTAFIZUR RAHMAN
Class 348
Art Group 2422
Patent No. 8,520,149
Case Type Utility - 348/744000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 11/804,603 Patented
Parent 10/913,744 Patented
Parent 60/493,739 Expired
Parent 60/577,620 Expired
Child 13/957,777 Patented
Child 14/257,052 Patented
Last Updated: 2 years, 6 months ago
Date # Transaction