Piston
Description
The broken lines are for the purposes of illustrating portions of the piston and form no part of the claimed design.
Claims
The ornamental design for a piston, as shown and described.
Referenced Cited
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Patent History
Patent number: D897373
Type: Grant
Filed: Sep 22, 2018
Date of Patent: Sep 29, 2020
Inventor: Chaoming Li (Zhenzhou)
Primary Examiner: Sheryl Lane
Assistant Examiner: Mark T. Philipps
Application Number: 29/664,196
Type: Grant
Filed: Sep 22, 2018
Date of Patent: Sep 29, 2020
Inventor: Chaoming Li (Zhenzhou)
Primary Examiner: Sheryl Lane
Assistant Examiner: Mark T. Philipps
Application Number: 29/664,196
Classifications
Current U.S. Class:
Element Or Attachment (D15/5)