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EMULSION FILM MEDIA EMPLOYING STEGANOGRAPHY

09/640,806 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Aug. 17, 2000
Examiner SALVATORE A CANGIALOSI
Class 380
Art Group 2661
Patent No. 6,438,231
Case Type Utility - 380/059000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/169,088 Patented
Parent 08/637,531 Patented
Parent 08/534,005 Patented
Parent 08/438,159 Patented
Parent 08/327,426 Patented
Parent 08/215,289 Abandoned
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Last Updated: 4 years, 5 months ago
Date # Transaction