Cat litter box

FIG. 1 is a front, right, and top perspective view of a cat litter box, showing our new design;

FIG. 2 is a rear, left, and bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a detailed view taken from the encircled portion labeled “ 9 ” in FIG. 1 .

The short-dash and long-dash broken lines in FIGS. 1 and 9 denote the boundaries of the detail areas and form no part of the claimed design. The evenly-dashed broken lines in the drawings are portions of the cat litter box that form no part of the claimed design.