I claim the ornamental design for a urinal, as shown and described.
FIG. 1 is a front isometric view of the new design.
FIG. 2 is a rear isometric view of the new design.
FIG. 3 is a front view of the new design.
FIG. 4 is a rear view of the new design.
FIG. 5 is a left side view of the new design.
FIG. 6 is a right side view of the new design.
FIG. 7 is a top view of the new design; and,
FIG. 8 is a bottom view of the new design.
The broken lines shown in the drawings illustrate portions of the urinal that form no part of the claimed design. The shading lines shown in the drawings represent the approximate three-dimensional contour of the claimed design and are not intended to indicate surface decoration.