Electric screw driver
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Description
Claims
The ornamental design for an electric screw driver, as shown and described.
Referenced Cited
U.S. Patent Documents
D131656 | March 1942 | Decker |
4658678 | April 21, 1987 | Pracht |
D304419 | November 7, 1989 | Henck et al. |
D320540 | October 8, 1991 | Staubitz et al. |
D323274 | January 21, 1992 | Sasaki et al. |
D429983 | August 29, 2000 | Fu-Hui |
6401569 | June 11, 2002 | Usbeck |
20010039855 | November 15, 2001 | Usbeck |
20020042581 | April 11, 2002 | Cervi |
Patent History
Patent number: D565914
Type: Grant
Filed: Jun 1, 2007
Date of Patent: Apr 8, 2008
Assignee: (Taipei)
Inventor: Li-Yu Teng (Peitou District, Taipei)
Primary Examiner: Cathron C. Brooks
Assistant Examiner: Austin Murphy
Attorney: McDermott Will & Emery LLP
Application Number: 29/274,865
Type: Grant
Filed: Jun 1, 2007
Date of Patent: Apr 8, 2008
Assignee: (Taipei)
Inventor: Li-Yu Teng (Peitou District, Taipei)
Primary Examiner: Cathron C. Brooks
Assistant Examiner: Austin Murphy
Attorney: McDermott Will & Emery LLP
Application Number: 29/274,865
Classifications
Current U.S. Class:
D8/61