Application

17509043 · Method for preparing multilayer metal composite pipe

Filed 2021-10-24 · Granted · Patent 11850645 (2023-12-26) The official file ↗The patent and its PDF ↗ · Art unit 3726 · Examiner David P Bryant Hard · CPC B21C 1/22 · Taiyuan University of Science and Technology · Lei Yu

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

22.0 mo

to disposition 26.1 mo

Statutes raised

112

1 actions read

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