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DOWNHOLE SUB WITH HYDRAULICALLY ACTUABLE SLEEVE VALVE

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

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Location ELECTRONIC
Filed May 9, 2014
Examiner CATHERINE A LOIKITH
Class 166
Art Group 3674
Patent No. 10,030,474
Case Type Utility - 166/373000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 12/914,731 Patented
Parent PCT/CA2009/000599 -
Parent 12/405,185 Abandoned
Parent 61/48,797 Expired
Parent 61/287,150 Expired
Child 16/14,926 Patented
Last Updated: 1 year, 10 months ago
Date # Transaction