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BAKER HUGHES OILFIELD OPERATIONS, LLC

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Patent No. RE46,137, In Rem

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Reexamination of Patent No. RE46,137, PRESSURE ACTUATED PORTED SUB FOR SUBTERRANEAN CEMENT COMPLETIONS

90/14,418 | U.S. Patent Application

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Location ELECTRONIC

Filed Dec. 9, 2019

Examiner WILLIAM CHARLES DOERRLER

Class 166

Art Group 3993

Case Type Re-Examination - 166/332100

Status Reexamination Certificate Issued

Original Case 14/881,804 Patented

Parent 13/193,902 Patented

Last Updated: 8 months ago

Date	#	Transaction
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Reexamination of Patent No. RE46,137, PRESSURE ACTUATED PORTED SUB FOR SUBTERRANEAN CEMENT COMPLETIONS

90/14,418 | U.S. Patent Application

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