Duct
Sorkin November 3, 1
U.S. patent number D400,670 [Application Number D/053,607] was granted by the patent office on 1998-11-03 for duct. Invention is credited to Felix L. Sorkin.
| United States Patent | D400,670 |
| Sorkin | November 3, 1998 |
Duct
Claims
The ornamental design for a duct, as shown and described.
| Inventors: | Sorkin; Felix L. (Stafford, TX) |
|---|---|
| Appl. No.: | D/053,607 |
| Filed: | April 25, 1996 |
| Current U.S. Class: | D23/393; D23/266 |
| Current International Class: | 2301 |
| Field of Search: | ;D23/266-268,393,260,262,269 ;138/121,173,DIG.11,177 ;285/903 |
References Cited [Referenced By]
U.S. Patent Documents
| D307174 | April 1990 | Bjorkman et al. |
| D371189 | June 1996 | Dharamsi et al. |
| 4296157 | October 1981 | Conte |
Other References
|
VSL Corporation, VSL Post-Tensioning Systems, Mar. 1994, pp. 1-30.. |
Primary Examiner: Lichtenstein; Lisa
Description
FIG. 1 is a perspective view of a duct showing my design;
FIG. 2 is a side elevational view thereof, the other sides being identical to that shown; and,
FIG. 3 is an end view thereof, the opposite end being a mirror image of that shown.
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