Step bit

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Description

FIG. 1 is a left view of the device.

FIG. 2 is a front view of the device.

FIG. 3 is rear view of the device; and,

FIG. 4 is a right view of the device.

Claims

The ornamental design for a step bit, as shown and described.

Referenced Cited
U.S. Patent Documents
3359837 December 1967 Andreasson
4418766 December 6, 1983 Grossmann
4489792 December 25, 1984 Fahim et al.
4850758 July 25, 1989 Morgan
5028181 July 2, 1991 Jenkins et al.
5149231 September 22, 1992 Bowling
5222848 June 29, 1993 Kuang-Wu
5328308 July 12, 1994 Ducker et al.
5746095 May 5, 1998 Sohnlein
D415774 October 26, 1999 Wakai
D419576 January 25, 2000 Burcher et al.
D430584 September 5, 2000 Kouvelis
6231281 May 15, 2001 Nishikawa
7048477 May 23, 2006 Abrams
20030026669 February 6, 2003 Lang et al.
20040112647 June 17, 2004 Meierhofer
20050186043 August 25, 2005 Fuller
20060099041 May 11, 2006 Mugeli
Patent History
Patent number: D573165
Type: Grant
Filed: Dec 20, 2007
Date of Patent: Jul 15, 2008
Inventor: Arlen Grundvig (Venice, FL)
Primary Examiner: Sandra Snapp
Assistant Examiner: Patricia Palasik
Attorney: Kyle Fletcher
Application Number: 29/294,068
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)