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PRESSURE ACTUATED PORTED SUB FOR SUBTERRANEAN CEMENT COMPLETIONS

13/193,902 | U.S. Patent Application

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Location ELECTRONIC
Filed July 29, 2011
Examiner WILLIAM P NEUDER
Class 166
Art Group 3672
Patent No. 8,555,960
Case Type Utility - 166/332100
Status Patented Case
Last Updated: 2 years, 1 month ago
Date # Transaction