Application

18716191 · DOWNHOLE HYDRAULIC DIRECTIONAL CONTROL VALVE USED BY HYDRAULIC POWER PUMPS AND WORKING METHOD THEREOF

Filed 2024-06-04 · Granted · Patent 12168912 (2024-12-17) The official file ↗The patent and its PDF ↗ · Art unit 3672 · Examiner Ronald R Runyan Typical · CPC E21B 34/10 · SHANDONG WEIMA PUMPS MANUFACTURING CO., LTD · IPro, PLLC

Office actions

first was Notice of allowance

RCEs

no appeal

To first action

4.5 mo

to disposition 6.4 mo

Statutes raised

0 actions read

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