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METHOD AND APPARATUS FOR PRODUCING SOUND PULSES WITHIN BORE HOLES

14/52,731 | U.S. Patent Application

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Location ELECTRONIC
Filed Oct. 12, 2013
Examiner EDGARDO SAN MARTIN
Class 181
Art Group 2837
Patent No. 8,931,587
Case Type Utility - 181/121000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 61/713,945 Expired
Child 14/560,482 Patented
Last Updated: 2 years, 5 months ago
Date # Transaction