Upright Walker

FIG. 1 is a front perspective view of an upright walker in accordance with the present design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines showing parts of the upright walker are for the purpose of illustrating portions of the upright walker that form no part of the claimed design.