The ornamental design for a urinal, as shown and described.
FIG. 1 is a perspective view of a urinal showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right side elevational view thereof; the left side elevational view being a mirror image thereof;
FIG. 7 is a cross-sectional view thereof, taken along line 7-7 of FIG. 2; and,
FIG. 8 is a perspective view of the urinal in use.
The broken lines on the surfaces of the urinal show portions of the article that form no part of the claim. The additional broken lines that surround the urinal in FIG. 8 are environmental structure, which form no mrt of the claimed design.