Application

17520452 · Two-step diffusion method for preparing high-performance dual-main-phase sintered mischmetal-iron-boron magnet

Filed 2021-11-05 · Granted · Patent 11742120 (2023-08-29) The official file ↗The patent and its PDF ↗ · Art unit 1735 · Examiner Benjamin C Anderson Hard · CPC H01F 1/0573 · BEIJING UNIVERSITY OF TECHNOLOGY · J.C. PATENTS

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

17.4 mo

to disposition 21.7 mo

Statutes raised

1 actions read

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