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MULTI-COIL COUPLING SYSTEM FOR HEARING AID APPLICATIONS

10/816,119 | U.S. Patent Application

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Location ELECTRONIC
Filed April 1, 2004
Examiner BRIAN ENSEY
Class 381
Art Group 2615
Patent No. 7,206,426
Case Type Utility - 381/331000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 60/459,865 Expired
Parent 10/356,290 Patented
Parent 09/752,806 Patented
Child 11/361,218 Abandoned
Last Updated: 4 years, 4 months ago
Date # Transaction