Step stool
Tu December 29, 2
U.S. patent number D606,768 [Application Number D/311,965] was granted by the patent office on 2009-12-29 for step stool. This patent grant is currently assigned to Bei Yu Industrial Co.. Invention is credited to Wen-Chih Tu.
| United States Patent | D606,768 |
| Tu | December 29, 2009 |
Step stool
Claims
CLAIM The ornamental design for a step stool, as shown and described.
| Inventors: | Tu; Wen-Chih (Gueiren Township, Tainna County, TW) |
|---|---|
| Assignee: | Bei Yu Industrial Co. (Tainan
Hsien, TW) |
| Appl. No.: | D/311,965 |
| Filed: | August 7, 2009 |
| Current U.S. Class: | D6/350 |
| Current International Class: | 0601 |
| Field of Search: | ;D6/330,335-338,340,349-355,358,359,364,366,376,491,495,500-502 ;297/16.1,39,46,135,140,156,158.3,158.4,175,177,187,195.1,195.11,211,245,423.1,423.16,445.1,461,462 ;D32/53,53.1 ;220/507 ;D25/65 |
References Cited [Referenced By]
U.S. Patent Documents
| D184390 | February 1959 | Cramer |
| D213552 | March 1969 | Hall |
| 3559761 | February 1971 | Wehner |
| 3599750 | August 1971 | Serwer |
| D244494 | May 1977 | Dottinger |
| D262419 | December 1981 | Cramer |
| D330462 | October 1992 | Szablak et al. |
| D512537 | December 2005 | Barnes et al. |
| D524069 | July 2006 | Lim |
| D566408 | April 2008 | Gonzalez |
| D566978 | April 2008 | Gonzalez |
| D570125 | June 2008 | Gonzalez |
| D597751 | August 2009 | Cohen |
Attorney, Agent or Firm: Rosenberg, Klein & Lee
Description
FIG. 1 is a perspective view of a step stool showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.
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