FIG. 1 is a perspective view of a urinal showing our new design; FIG. 2 is a front view thereof; FIG. 3 is a left side view thereof; FIG. 4 is a right side view thereof; FIG. 5 is top view thereof; FIG. 6 is a bottom view thereof; and, FIG. 7 is a rear view thereof. The broken lines shown are for illustrative purposes only and form no part of the claimed design.