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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| 4672743 | June 16, 1987 | Grahm |
| 4722140 | February 2, 1988 | Miceli |
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| D487494 | March 9, 2004 | Glesser |
| 6715208 | April 6, 2004 | Lemisch |
| 6848183 | February 1, 2005 | Lemisch |
| 7676930 | March 16, 2010 | Demko |
| D701103 | March 18, 2014 | Marfione |
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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