FIG. 1 is a side view of an all-terrain wheelchair showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a side view thereof with smooth-tread tires in broken lines;

FIG. 5 is a side view of a second embodiment of the all-terrain wheelchair, the sole difference from the first embodiment being in the different configuration of the footrest;

FIG. 6 is a side view of a third embodiment of the all-terrain wheelchair showing the reclining chair design;

FIG. 7 is a front view of FIG. 6;

FIG. 8 is a rear view of FIG. 6 showing the pivoted rear wheels;

FIG. 9 is a rear view of a fourth embodiment of the all-terrain wheelchair showing the reclining chair with umbrella attached thereto; and,

FIG. 10 is a rear view of a fifth embodiment of the all-terrain wheelchair showing a single rear wheel.

The broken lines of wheels are for illustrative purposes only and form no part of the claimed design.