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The ornamental design for a step stool, as shown and described. |
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FIG. 1 is a perspective view of the step stool;
FIG. 2 is a upper plan view of the step stool;
FIG. 3 is a side elevation of the step stool;
FIG. 4 is an end view of the step stool; and,
FIG. 5 is a side elevation of the other side of the step stool.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 23 1992 | LEDUC, PAUL | SANTULIN MANAGEMENT LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 006495 | /0406 | |
| May 01 1992 | Santulin Management Ltd. | (assignment on the face of the patent) | / |
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