Utility knife
Description
Claims
The ornamental design for a utility knife, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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Patent History
Patent number: D551932
Type: Grant
Filed: Jan 25, 2006
Date of Patent: Oct 2, 2007
Inventor: Wang Ai Guo (Zhe Jiang Province)
Primary Examiner: Philip S. Hyder
Attorney: Greer, Burns & Crain, Ltd
Application Number: 29/252,680
Type: Grant
Filed: Jan 25, 2006
Date of Patent: Oct 2, 2007
Inventor: Wang Ai Guo (Zhe Jiang Province)
Primary Examiner: Philip S. Hyder
Attorney: Greer, Burns & Crain, Ltd
Application Number: 29/252,680
Classifications
Current U.S. Class:
D8/99