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SELF VALIDATING SECURITY DOCUMENTS UTILIZING WATERMARKS

10/11,129 | U.S. Patent Application

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Location ELECTRONIC
Filed Nov. 9, 2001
Examiner ANDREW W JOHNS
Class 382
Art Group 2621
Patent No. 6,970,573
Case Type Utility - 382/100000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/442,780 Patented
Parent 60/109,259 Expired
Parent 09/74,034 Patented
Parent 09/198,022 Patented
Parent 08/763,847 Patented
Parent 08/512,993 Abandoned
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Last Updated: 4 years, 9 months ago
Date # Transaction