Application

18026278 · A FULL-FREQUENCY BAND HIGH QUALITY PLANAR RESONANCE SPEAKER WITH A BAR AND SOUND TUNNELS

Filed 2023-03-14 · Granted · Patent 12439208 (2025-10-07) The official file ↗The patent and its PDF ↗ · Art unit 2691 · Examiner Suhan Ni Easy · CPC H04R 7/06 · SUZHOU LI YUE MUSICAL INSTRUMENTS CO., LTD. · OLIFF PLC

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

24.7 mo

to disposition 30.8 mo

Statutes raised

112

1 actions read

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