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SECURITY DOCUMENT WITH STEGANOGRAPHICALLY-ENCODED AUTHENTICATION DATA

09/198,022 | U.S. Patent Application

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Location ELECTRONIC
Filed Nov. 23, 1998
Examiner ANDREW W JOHNS
Class 382
Art Group 2621
Patent No. 6,546,112
Case Type Utility - 382/100000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 08/763,847 Patented
Parent 08/512,993 Abandoned
Parent 08/436,098 Patented
Parent 08/436,099 Patented
Parent 08/436,102 Patented
Parent 08/436,134 Patented
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Last Updated: 2 years, 3 months ago
Date # Transaction