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DOWNHOLE SUB WITH HYDRAULICALLY ACTUABLE SLEEVE VALVE

14/273,989 | U.S. Patent Application

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Filed May 9, 2014
Examiner LOIKITH, CATHERINE A
Class 166
Art Group 3674
Patent No. 10,030,474
Case Type Utility
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child 16/014,926 Expired
Last Updated: 2 months, 2 weeks ago
Date # Transaction