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AUTHENTICATION OF PHYSICAL AND ELECTRONIC MEDIA OBJECTS USING DIGITAL WATERMARKS

09/837,564 | U.S. Patent Application

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Location ELECTRONIC
Filed April 17, 2001
Examiner JOSE L COUSO
Class 382
Art Group 2621
Case Type Utility - 382/100000
Status Abandoned -- Failure to Pay Issue Fee
Parent 60/198,138 Expired
Parent 60/198,849 Expired
Parent 09/503,881 Patented
Parent 09/186,962 Patented
Parent 08/649,419 Patented
Parent 08/637,531 Patented
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Last Updated: 5 years ago
Date # Transaction