Step stool

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Description

FIG. 1 is a front 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 elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Claims

The ornamental design for a step stool, as shown and described.

Referenced Cited
U.S. Patent Documents
D184390 February 1959 Cramer
D216508 January 1970 Dottinger
3559761 February 1971 Wehner
3599750 August 1971 Serwer
D244494 May 31, 1977 Dottinger
D262419 December 29, 1981 Cramer
D524069 July 4, 2006 Lim
D570125 June 3, 2008 Gonzalez
D640878 July 5, 2011 Huang et al.
Patent History
Patent number: D650185
Type: Grant
Filed: Mar 31, 2011
Date of Patent: Dec 13, 2011
Assignee: Hsiang Fu Chia Enterprise Co., Ltd. (Changhua County)
Inventor: Chiung Yueh Hsu (Hemei Township, Changhua County)
Primary Examiner: Sandra Snapp
Attorney: Leong C. Lei
Application Number: 29/388,604
Classifications
Current U.S. Class: D6/349