Step stool

Description

FIG. 1 is a perspective view of a step stool;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The portions of the hidden step shown in broken lines depict environmental subject matter and form no part of the claimed design.

Claims

The ornamental design for a step stool, as shown and described.