Application
14538374 · PRESSURE COMPENSATED CAPACITIVE MICROMACHINED ULTRASOUND TRANSDUCER FOR DOWNHOLE APPLICATIONS
Filed 2014-11-11 · Granted · Patent 9534492 (2017-01-03) The official file ↗The patent and its PDF ↗ · Art unit 3645 · Examiner Daniel L Murphy Typical · CPC B06B 1/0292 · Baker Hughes Incorporated · Baker Hughes Company
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first was Notice of allowance
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To first action
21.3 mo
to disposition 25.8 mo
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