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Ken YASUDA

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NTN CORPORATION

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PISTON RING

18/682,929 | U.S. Patent Application

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Filed July 21, 2025

Examiner Vishal A Patel

Class 277

Art Group 3675

Case Type Utility

Status Final Rejection Mailed

Last Updated: 1 week ago

Date	#	Transaction
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PISTON RING

18/682,929 | U.S. Patent Application

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