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IMPROVED HEARING ENHANCEMENT SYSTEM AND METHOD

09/59,307 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed April 14, 1998
Examiner VIVIAN C CHIN
Class 381
Art Group 2644
Case Type Utility - 381/096000
Status Expressly Abandoned -- During Examination
Child PCT/US98/10694 Published
Child PCT/US99/08055 Published
Child 12/193,581 Patented
Child 09/673,275 Patented
Child 11/154,816 Patented
Child 11/971,183 Patented
Last Updated: 6 months, 1 week ago
Date # Transaction