Screwdriver head
Description
Claims
The ornamental design for a screwdriver head, as shown.
Referenced Cited
U.S. Patent Documents
D90251 | July 1933 | Hindes |
D95393 | April 1935 | Wise |
D221048 | July 1971 | Bixby |
D350685 | September 20, 1994 | Perkins et al. |
5868047 | February 9, 1999 | Faust et al. |
D479457 | September 9, 2003 | Dollar et al. |
D631723 | February 1, 2011 | DeBaker |
D646547 | October 11, 2011 | DeBaker |
D663187 | July 10, 2012 | DeBaker |
8418587 | April 16, 2013 | DeBaker |
D704022 | May 6, 2014 | Hsu |
D707524 | June 24, 2014 | Chen |
Patent History
Patent number: D753979
Type: Grant
Filed: Feb 17, 2014
Date of Patent: Apr 19, 2016
Inventor: Tsai Fa Liu (Taichung)
Primary Examiner: Philip S Hyder
Assistant Examiner: Roselynne Cody
Application Number: 29/482,319
Type: Grant
Filed: Feb 17, 2014
Date of Patent: Apr 19, 2016
Inventor: Tsai Fa Liu (Taichung)
Primary Examiner: Philip S Hyder
Assistant Examiner: Roselynne Cody
Application Number: 29/482,319
Classifications
Current U.S. Class:
D8/86