Double-head screw
Williams , et al. September 25, 2
U.S. patent number D551,543 [Application Number D/240,020] was granted by the patent office on 2007-09-25 for double-head screw. Invention is credited to Kenneth D. Williams, Teresa A. Williams.
| United States Patent | D551,543 |
| Williams , et al. | September 25, 2007 |
Double-head screw
Claims
CLAIM We claim the ornamental design for a double-head screw, as shown and described.
| Inventors: | Williams; Kenneth D. (Sarepta, LA), Williams; Teresa A. (Sarepta, LA) |
|---|---|
| Appl. No.: | D/240,020 |
| Filed: | October 7, 2005 |
| Current U.S. Class: | D8/387 |
| Current International Class: | 0808 |
| Field of Search: | ;D8/382,385,387,388,391 ;411/55,393,402,403 |
References Cited [Referenced By]
U.S. Patent Documents
| 1651796 | December 1927 | Arenz |
| 1908215 | May 1933 | Berge |
| 2372888 | April 1945 | Duggan |
| 3810279 | May 1974 | Swick et al. |
| D248824 | August 1978 | Imai et al. |
| D267627 | January 1983 | Hultin |
| D268006 | February 1983 | Wollar |
| D351335 | October 1994 | Yazich |
| 5540531 | July 1996 | Choiniere |
| D416475 | November 1999 | DePrisco |
| D455338 | April 2002 | Moser |
| D469007 | January 2003 | Chen et al. |
Assistant Examiner: Friedman; Sheryl
Attorney, Agent or Firm: Schoonover; Donald R.
Description
FIG. 1 is a perspective view of a double-head screw showing our new design;
FIG. 2 is a side elevational view thereof, all other side elevational views being identical thereto;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is a reduced perspective view showing the double-head screw in use; the broken lines depict environmental structure for illustrative purposes only and form no part of the claimed design.
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