I claim the ornamental design for a mud mat, as shown and described.
FIG. 1 is a top plan view of a mud mat of the present invention, the mat being of greater overall dimension in length and width than that illustrated, the non-illustrated portion intermediate the four illustrated corner portions being identical and continuous with the adjacent illustrated structure. The mud mat is shown broken away in order to indicate that a specific length and width of the mud mat forms no part of the claimed design.
FIG. 2 is an enlarged, top plan view of the lower left corner of the mud mat shown in FIG. 1.
FIG. 3 is a sectional view taken along line 3—3 of FIG. 2, the sectional view in this direction being uniform across the entirety of the mud mat until arriving at the opposite edge, which edge will appear as the mirror image of the illustrated edge.
FIG. 4 is a sectional view taken along line 4—4 of FIG. 2, the sectional view in this direction being uniform across the entirety of the mud mat until arriving at the opposite edge, which edge will appear as the mirror image of the illustrated edge; and,
FIG. 5 is a detail perspective view of a sectioned representative corner of a mud mat of the present invention, the section being taken along line 5—5 of FIG. 2.
Elements rendered in broken lines are for illustrative purposes only and form no part of the claimed design.