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USER ADJUSTABLE VOLUME CONTROL THAT ACCOMMODATES HEARING

09/673,275 | U.S. Patent Application

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Location ELECTRONIC
Filed Oct. 13, 2000
Examiner PING LEE
Class 381
Art Group 2615
Patent No. 7,415,120
Case Type Utility - 381/109000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent PCT/US99/08055 -
Parent 09/59,303 Abandoned
Parent 09/59,304 Abandoned
Parent 09/59,307 Abandoned
Parent 60/109,506 Expired
Child 12/193,581 Patented
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Last Updated: 4 years, 5 months ago
Date # Transaction