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SYSTEM FOR CONTROLLING THE DISTRIBUTION AND USE DIGITAL WORKS USING DIGITAL TICKETS

11/14,816 | U.S. Patent Application

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Location ELECTRONIC
Filed Dec. 20, 2004
Examiner JAMES A REAGAN
Class 705
Art Group 3621
Patent No. 7,200,574
Case Type Utility - 705/057000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/777,966 Patented
Parent 08/967,084 Patented
Parent 08/344,760 Abandoned
Last Updated: 4 years, 1 month ago
Date # Transaction