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SECURE MESSAGING SYSTEM WITH DERIVED KEYS

10/887,721 | U.S. Patent Application

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Filed July 9, 2004
Examiner Baotran N To
Class 713
Art Group 2435
Patent No. 7,624,269
Case Type Utility
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Last Updated: 2 days, 3 hours ago
Date # Transaction