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The ornamental design for a step ladder, as shown and described. |
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FIG. 1 is a front perspective view of the step ladder showing my new design, illustrating the step ladder in its erected position;
FIG. 2 is a right side elevational view of FIG. 1;
FIG. 3 is a right side elevational view of the step ladder in its collapsed or folded position;
FIG. 4 is a front elevational view of the front section of the step ladder;
FIG. 5 is a right side elevational view of FIG. 4, the opposite side being a mirror image thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a rear elevational view of the rear section of the step ladder;
FIG. 10 is a right side elevational view of FIG. 10, the opposite side being a mirror image thereof;
FIG. 11 is a front elevational view thereof;
FIG. 12 is a top plan view thereof;
FIG. 13 is a bottom plan view thereof;
FIG. 14 is a front elevational view of the step ladder shown in FIG. 2;
FIG. 15 is a rear elevational view of the step ladder shown in FIG. 2;
FIG. 16 is a top plan view thereof; and
FIG. 17 is a bottom plan view thereof.
Schmitt, Thomas J., Wallick, Jr., Claude R.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 14 1986 | Emerson Electric Co. | (assignment on the face of the patent) | / | |||
| Jul 10 1986 | WALLICK, CLAUDE R JR | EMERSON ELECTRIC CO , A CORP OF MISSOURI | ASSIGNMENT OF ASSIGNORS INTEREST | 004586 | /0847 | |
| Jul 14 1986 | SCHMITT, THOMAS J | EMERSON ELECTRIC CO , A CORP OF MISSOURI | ASSIGNMENT OF ASSIGNORS INTEREST | 004586 | /0847 |
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