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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 a first embodiment of my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right-side elevational view thereof, with the left-side elevational view thereof being substantially similar;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a perspective view of a step stool showing a second embodiment in accordance with my new design;
FIG. 8 is a front elevational view thereof;
FIG. 9 is a top plan view thereof;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a right-side elevational view thereof, with the left-side elevational view thereof being substantially similar;
FIG. 12 is a bottom view thereof;
FIG. 13 is a perspective view of a step stool showing a third embodiment of my new design;
FIG. 14 is a front elevational view thereof;
FIG. 15 is a top plan view thereof;
FIG. 16 is a rear elevational view thereof;
FIG. 17 is a right-side elevational view thereof, with the left-side elevational view thereof being substantially similar; and,
FIG. 18 is a bottom view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Nov 26 1997 | Cosco, Inc. | (assignment on the face of the patent) | / | |||
| Jun 01 1998 | COSCO, INC | COSCO MANAGEMENT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010263 | /0474 | |
| Jun 01 1998 | COSCO, INC | COSCO MANAGEMENT, INC | RE-RECORD TO CORRECT PATENT NUMBER 4456303 PREVIOUSLY RECORDED AT REEL 010263, FRAME 0474 | 010814 | /0495 | |
| 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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