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ROTARY DRAG BITS HAVING A PILOT CUTTER CONFIGURATON AND METHOD TO PRE-FRACTURE SUBTERRANEAN FORMATIONS THEREWITH

11/862,440 | U.S. Patent Application

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Location ELECTRONIC
Filed Sept. 27, 2007
Examiner ROBERT EDWARD FULLER
Class 175
Art Group 3676
Patent No. 7,896,106
Case Type Utility - 175/057000
Status Patented Case
Parent 60/873,349 Expired
Child 12/537,899 Patented
Child PCT/US07/25101 Published
Last Updated: 4 years, 8 months ago
Date # Transaction