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METHOD AND APPARATUS FOR TRACKING STATES OF DIGITAL WORKS

10/401,529 | U.S. Patent Application

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Location ELECTRONIC
Filed March 31, 2003
Examiner KAMBIZ ABDI
Class 705
Art Group 3621
Patent No. 6,959,290
Case Type Utility - 705/051000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/778,001 Patented
Parent 08/967,084 Patented
Parent 08/344,760 Abandoned
Child 11/216,275 Abandoned
Last Updated: 4 years, 8 months ago
Date # Transaction