Application

18189900 · PROTECTED BACK-UP RINGS FOR METAL FACE SEALS AND EARTH BORING TOOLS INCORPORATING THE SAME

Filed 2023-03-24 · Granted · Patent 12188300 (2025-01-07) The official file ↗The patent and its PDF ↗ · Art unit 3676 · Examiner Blake E Michener Typical · CPC E21B 10/25 · Baker Hughes Oilfield Operations LLC · Traskbritt, P.C. / Baker Hughes, Inc.

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

14.0 mo

to disposition 21.5 mo

Statutes raised

112

1 actions read

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