Woodworking drill bit
Description
Claims
The ornamental design for a woodworking drill bit, as shown and described.
Referenced Cited
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Patent History
Patent number: D580462
Type: Grant
Filed: Jun 11, 2008
Date of Patent: Nov 11, 2008
Inventors: Chung-Liang Liao (Feng Yuan City, Taichung Hsien), Chung-Hung Liao (Feng Yuan City, Taichung Hsien)
Primary Examiner: Sandra Snapp
Assistant Examiner: Patricia Palasik
Attorney: Rosenberg, Klein & Lee
Application Number: 29/309,008
Type: Grant
Filed: Jun 11, 2008
Date of Patent: Nov 11, 2008
Inventors: Chung-Liang Liao (Feng Yuan City, Taichung Hsien), Chung-Hung Liao (Feng Yuan City, Taichung Hsien)
Primary Examiner: Sandra Snapp
Assistant Examiner: Patricia Palasik
Attorney: Rosenberg, Klein & Lee
Application Number: 29/309,008
Classifications
Current U.S. Class:
Cutting Tool, E.g., Drill Bit, Etc. (D15/139)