- Snap-on Tools Corporation

FIG. 1 is a perspective view of a screwdriver showing our new design;

FIG. 2 is an end elevational view of one end thereof;

FIG. 3 is an end elevational view of the other end thereof; and

FIG. 4 is a side elevational view thereof, the shank being shown away for illustrative purposes only.

The broken line showing of the tool bit is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D143931 February 1946 Odlum
D256882 September 16, 1980 Jansson
1447832 March 1923 Bailey
3586080 June 1971 Slany
Foreign Patent Documents
2828077 January 1980 DEX
Other references
  • Stanley Tools Brochure, #66-201 Assortment of Triangular Grip Drivers. Fiskars Brochure, Power-Grip Plus 900 Series Screwdriver. Techni-Tool Catalog #28, .COPYRGT.1984, p. 38, Magnetic Torx Screwdriver #490SC020.
Patent History
Patent number: D307236
Type: Grant
Filed: Jul 11, 1986
Date of Patent: Apr 17, 1990
Assignee: Snap-on Tools Corporation (Kenosha, WI)
Inventors: Steven S. Cascio (Kenosha, WI), Donald J. Caldwell (Milwaukee, WI), Tom S. Severson (Kenosha, WI), Steven R. Wente (Kenosha, WI), Mark S. Bakula (Muskego, WI)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Clare E. Heflin
Law Firm: Emrich & Dithmar
Application Number: 6/884,439
Current U.S. Class: D 8/82; D 8/83