Step stool
The dash-dash broken lines in the drawings depict portions of the step stool that form no part of the claimed design. The dot-dash broken lines represent boundaries of the enlarged portions and form no part of the claimed design.
Claims
The ornamental design for a step stool, as shown and described.
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Type: Grant
Filed: Sep 13, 2022
Date of Patent: Jan 31, 2023
Inventor: Xiaoting Yu (Taizhou)
Primary Examiner: S. Bryan Reinholdt, Jr.
Assistant Examiner: Julia S Folkart
Application Number: 29/853,111