Step Stool

FIG. 1 is a front, right, and top perspective view of a step stool, showing my new design;

FIG. 2 is a rear, left, and bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of an encircled area labeled “ 9 ” in FIG. 1 ;

FIG. 10 is an enlarged view of an encircled area labeled “ 10 ” in FIG. 1 ;

FIG. 11 is an enlarged view of an encircled area labeled “ 11 ” in FIG. 2 ; and,

FIG. 12 is an exploded, front, right, and top perspective view thereof.

The evenly-dashed broken lines depict portions of the step stool that form no part of the claimed design. The dot-dashed broken lines, as shown in FIGS. 1 , 2 , 9 , 10 , and 11 , depict the boundary of the enlargements that form no part of the claimed design.