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OPTICAL HEAD APPARATUS INCLUDING TWO LIGHT SOURCES AND ONE PHOTODETECTOR

10/244,800 | U.S. Patent Application

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Location ELECTRONIC
Filed Sept. 16, 2002
Examiner VAN NGUYEN CHOW
Class 369
Art Group 2653
Patent No. 6,980,505
Case Type Utility - 369/112170
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child 10/970,788 Patented
Child 2001-285208
Last Updated: 5 years, 3 months ago
Date # Transaction