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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 a step stool showing our new design;
FIG. 2 is a right-side elevational view thereof, with the left-side elevational view thereof substantially similar;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 13 1999 | Cosco Management, Inc. | (assignment on the face of the patent) | / | |||
| Apr 27 2000 | SMITH, JERRY R | COSCO MANAGEMENT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010845 | /0911 | |
| Apr 28 2000 | ULLUM, STEVE | COSCO MANAGEMENT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010845 | /0911 | |
| Nov 25 2014 | COSCO MANAGEMENT, INC | AMERIWOOD INDUSTRIES, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 034485 | /0130 | |
| Sep 12 2016 | AMERIWOOD INDUSTRIES, INC | DOREL HOME FURNISHINGS, INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 040147 | /0673 |
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