FIG. 1 is a perspective, front and side view of the litter box in accordance with the first embodiment of the Design,
FIG. 2 is a front view of the litter box of FIG. 1;
FIG. 3 is a rear view of the litter box of FIG. 1;
FIG. 4 is a left side view of the litter box of FIG. 1;
FIG. 5 is a right side view of the litter box of FIG. 1;
FIG. 6 is a top plan view of the litter box of FIG. 1;
FIG. 7 is a bottom view of the litter box of FIG. 1;
FIG. 8 is a perspective, front and side view of the litter box in accordance with the second embodiment of the Design,
FIG. 9 is a front view of the litter box of FIG. 8;
FIG. 10 is a rear view of the litter box of FIG. 8;
FIG. 11 is a left side view of the litter box of FIG. 8;
FIG. 12 is a right side view of the litter box of FIG. 8;
FIG. 13 is a top plan view of the litter box of FIG. 8.
FIG. 14 is a bottom view of the litter box of FIG. 8;
FIG. 15 is a perspective, front and side view of the litter box in accordance with the third embodiment of the Design,
FIG. 16 is a front view of the litter box of FIG. 15;
FIG. 17 is a rear view of the litter box of FIG. 15;
FIG. 18 is a left side view of the litter box of FIG. 15;
FIG. 19 is a right side view of the litter box of FIG. 15;
FIG. 20 is a top plan view of the litter box of FIG. 15;
FIG. 21 is a bottom view of the litter box of FIG. 15;
FIG. 22 is a perspective, front and side view of the litter box in accordance with the fourth embodiment of the Design,
FIG. 23 is a front view of the litter box of FIG. 22;
FIG. 24 is a rear view of the litter box of FIG. 22;
FIG. 25 is a left side view of the litter box of FIG. 22;
FIG. 26 is a right side view of the litter box of FIG. 22;
FIG. 27 is a top plan view of the litter box of FIG. 22;
FIG. 28 is a bottom view of the litter box of FIG. 22;
FIG. 29 is a perspective, front and side view of the litter box in accordance with the fifth embodiment of the Design,
FIG. 30 is a front view of the litter box of FIG. 29;
FIG. 31 is a rear view of the litter box of FIG. 29;
FIG. 32 is a left side view of the litter box of FIG. 29;
FIG. 33 is a right side view of the litter box of FIG. 29;
FIG. 34 is a top plan view of the litter box of FIG. 29; and,
FIG. 35 is a bottom view of the litter box of FIG. 29.
The broken line portions depict subject matter that forms no part of the claimed design. The parallel lines broken by zigzag shown in the Figures illustrate represent a break in length and form no part of the claimed design.