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AUDIO WATERMARKING TO CONVEY AUXILIARY INFORMATION, AND MEDIA EMBODYING SAME

10/400,159 | U.S. Patent Application

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Location ELECTRONIC
Filed March 25, 2003
Examiner ANDREW W JOHNS
Class 381
Art Group 2624
Patent No. 7,181,022
Case Type Utility - 381/073100
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/441,819 Patented
Parent 08/951,858 Patented
Parent 08/436,134 Patented
Parent 08/327,426 Patented
Parent 08/215,289 Abandoned
Parent 08/154,866 Abandoned
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Last Updated: 4 years, 8 months ago
Date # Transaction