Sharpener for drill bits

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Description

FIG. 1 is a front, right side and top perspective view of a sharpener for drill bits showing my new design;

FIG. 2 is a front, left side and top perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

Claims

The ornamental design for a sharpener for drill bits, as shown and described.

Referenced Cited
U.S. Patent Documents
3769757 November 1973 Sunday, Jr.
4016680 April 12, 1977 Moores et al.
4031672 June 28, 1977 Moores et al.
4742648 May 10, 1988 Ketteringham
4974372 December 4, 1990 Chantalat
D324224 February 25, 1992 Chien
5311703 May 17, 1994 Ketteringham
D356483 March 21, 1995 Fultz et al.
5400546 March 28, 1995 Christian et al.
5735732 April 7, 1998 Bernard
6626745 September 30, 2003 Bernard
7121932 October 17, 2006 Liao
7172498 February 6, 2007 Bernard et al.
Other references
  • 1 sheet printout from google image search for drill bit sharpener.
Patent History
Patent number: D568132
Type: Grant
Filed: Mar 7, 2007
Date of Patent: May 6, 2008
Assignee: Choon Nang Electrical Appliance Mfy., Ltd (Aberdeen, Hong Kong)
Inventor: Ping Hay Heun (Hong Kong)
Primary Examiner: Philip S. Hyder
Attorney: Alix, Yale & Ristas, LLP
Application Number: 29/273,526
Classifications
Current U.S. Class: D8/63; D8/91