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Reexamination of Patent No. 5,850,481, STEGANOGRAPHIC SYSTEM

90/5,829 | U.S. Patent Application

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Location At National Archives - Contact Records Management at RecordsManagement@uspto.gov
Filed Oct. 20, 2000
Examiner ANDREW W JOHNS
Class 382
Art Group 2662
Case Type Re-Examination - 382/232000
Status Reexamination Certificate Issued
Original Case 08/438,159 Patented
Parent 08/327,426 Patented
Parent 08/215,289 Abandoned
Parent 08/154,866 Abandoned
Last Updated: 8 months, 2 weeks ago
Date # Transaction