Screwdriver
Carlson November 13, 1
U.S. patent number D312,033 [Application Number 07/231,047] was granted by the patent office on 1990-11-13 for screwdriver. Invention is credited to David B. Carlson.
| United States Patent | D312,033 |
| Carlson | November 13, 1990 |
Screwdriver
Claims
The ornamental design for a screwdriver, as shown and described.
| Inventors: | Carlson; David B. (Bloomington, MN) |
|---|---|
| Appl. No.: | 07/231,047 |
| Filed: | August 11, 1988 |
| Current U.S. Class: | D8/82 |
| Field of Search: | ;D8/14,82-87,107,303 ;81/436,437,460,461,177.1 ;16/116A,116R,11R |
References Cited [Referenced By]
U.S. Patent Documents
| 539155 | May 1895 | Tower |
| 2620001 | December 1952 | Fratz et al. |
| 3363500 | January 1968 | Simko |
| 3872904 | March 1975 | Barlow |
Other References
|
Hong Kong Enterprise, Nov. 1987, p. 25, Handles of Screwdrivers, circled.. |
Primary Examiner: Holtje; Nelson C.
Assistant Examiner: Heflin; C. E.
Attorney, Agent or Firm: Gilden; Leon
Description
FIG. 1 is a front elevational view of a screwdriver showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof.
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