Drill bit for screw
Description
The features shown in broken lines depict environmental subject matter only and form no part of the claimed design.
The break-lines of
Claims
The ornamental design for a drill bit for screw, as shown and described.
Referenced Cited
U.S. Patent Documents
D273391 | April 10, 1984 | Lassiter |
D531651 | November 7, 2006 | Yanagimoto |
D615839 | May 18, 2010 | Richter et al. |
D669923 | October 30, 2012 | Watson et al. |
20060285935 | December 21, 2006 | Lin |
20100158626 | June 24, 2010 | Nakahata et al. |
Patent History
Patent number: D690335
Type: Grant
Filed: Jun 28, 2012
Date of Patent: Sep 24, 2013
Inventor: Yuan-Chi Li (Hemei Township, Changhua County)
Primary Examiner: Patricia Palasik
Application Number: 29/425,874
Type: Grant
Filed: Jun 28, 2012
Date of Patent: Sep 24, 2013
Inventor: Yuan-Chi Li (Hemei Township, Changhua County)
Primary Examiner: Patricia Palasik
Application Number: 29/425,874
Classifications
Current U.S. Class:
Cutting Tool, E.g., Drill Bit, Etc. (D15/139)