Application

18386254 · PARALLEL CONNECTED MULTIPLE SHAFT ROOTS VACUUM PUMP

Filed 2023-11-02 · Granted · Patent 12297831 (2025-05-13) The official file ↗The patent and its PDF ↗ · Art unit 3746 · Examiner Mary Alice Davis Typical · CPC F04C 18/126 · China Link Consultant Company, Ltd · Raymond Zhou Shaw

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

11.9 mo

to disposition 18.3 mo

Statutes raised

112

1 actions read

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