Screw driver bit
Espin November 13, 1
U.S. patent number D312,034 [Application Number 06/930,873] was granted by the patent office on 1990-11-13 for screw driver bit. This patent grant is currently assigned to Helen P. Espin. Invention is credited to Mario W. Espin.
| United States Patent | D312,034 |
| Espin | November 13, 1990 |
Screw driver bit
Claims
The ornamental design for a screw driver bit, as shown and described.
| Inventors: | Espin; Mario W. (Charlotte, NC) |
|---|---|
| Assignee: | Espin; Helen P. (Charlotte,
NC) |
| Appl. No.: | 06/930,873 |
| Filed: | November 14, 1986 |
| Current U.S. Class: | D8/86; D15/139; D8/70 |
| Field of Search: | ;D8/82-87 ;81/436,441,901 ;D15/139 |
References Cited [Referenced By]
U.S. Patent Documents
| 539155 | May 1895 | Tower |
| 2550635 | April 1951 | Brown et al. |
| 2673359 | March 1954 | Stellin |
| 2815054 | December 1957 | Cummaro |
| 3122963 | March 1964 | Borgeson |
| 3363500 | January 1968 | Simko |
| 3913647 | October 1975 | Arnn |
| 747810 | Apr 1933 | FR | |||
| 84698 | Oct 1935 | SE | |||
| 1277117 | Jun 1972 | GB | |||
Assistant Examiner: Heflin; Clare E.
Attorney, Agent or Firm: Shefte, Pinckney & Sawyer
Description
FIG. 1 is a top, front and one side perspective view of the screw driver bit showing my new design, the opposite side being identical to the one shown;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof.
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