USD881958SActiveUtility

Piston ring for internal combustion engine

63
Assignee: SAMYOUNG MACHINERY CO LTDPriority: May 14, 2018Filed: Jun 29, 2018Granted: Apr 21, 2020
Est. expiryMay 14, 2038(~11.8 yrs left)· nominal 20-yr term from priority
Inventors:Geum Tai Han
63
PatentIndex Score
10
Cited by
10
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       I claim the ornamental design for a piston ring for internal combustion engine, as shown and described.

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