Screwdriver
Cascio , et al. April 17, 1
U.S. patent number D307,236 [Application Number 06/884,439] was granted by the patent office on 1990-04-17 for screwdriver. This patent grant is currently assigned to Snap-on Tools Corporation. Invention is credited to Mark S. Bakula, Donald J. Caldwell, Steven S. Cascio, Tom S. Severson, Steven R. Wente.
| United States Patent | D307,236 |
| Cascio , et al. | April 17, 1990 |
Screwdriver
Claims
The ornamental design for a screwdriver, as shown and described.
| Inventors: | Cascio; Steven S. (Kenosha, WI), Caldwell; Donald J. (Milwaukee, WI), Severson; Tom S. (Kenosha, WI), Wente; Steven R. (Kenosha, WI), Bakula; Mark S. (Muskego, WI) |
|---|---|
| Assignee: | Snap-on Tools Corporation
(Kenosha, WI) |
| Appl. No.: | 06/884,439 |
| Filed: | July 11, 1986 |
| Current U.S. Class: | D8/82; D8/83 |
| Field of Search: | ;D8/82-87,70 ;81/436,441,901,460,461,437,441,177.1,489 ;7/165 |
References Cited [Referenced By]
U.S. Patent Documents
| D143931 | February 1946 | Odlum |
| D256882 | September 1980 | Jansson |
| 1447832 | March 1923 | Bailey |
| 3586080 | June 1971 | Slany |
| 2828077 | Jan 1980 | DE | |||
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.. |
Primary Examiner: Holtje; Nelson C.
Assistant Examiner: Heflin; Clare E.
Attorney, Agent or Firm: Emrich & Dithmar
Description
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.
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