Butterfly Knife
Description
Claims
The ornamental design for a butterfly knife, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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D727691 | April 28, 2015 | Wang |
- Print out from Google image search for butterfly training knife.
Patent History
Patent number: D825310
Type: Grant
Filed: Mar 10, 2017
Date of Patent: Aug 14, 2018
Inventor: Huan Liu (Xiaochang County)
Primary Examiner: Philip S Hyder
Application Number: 29/596,677
Type: Grant
Filed: Mar 10, 2017
Date of Patent: Aug 14, 2018
Inventor: Huan Liu (Xiaochang County)
Primary Examiner: Philip S Hyder
Application Number: 29/596,677
Classifications
Current U.S. Class:
D8/99