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METHODS FOR REDUCING RINGING OF ULTRASONIC TRANSDUCERS

10/208,522 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed July 30, 2002
Examiner DANIEL T PIHULIC
Class 367
Art Group 3662
Patent No. 6,731,569
Case Type Utility - 367/138000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 10/100,282 Abandoned
Parent 60/276,461 Expired
Child 10/835,159 Patented
Child 11/457,904 Abandoned
Last Updated: 4 years, 5 months ago
Date # Transaction