Self-cleaning cat litter box

FIG. 1 is a front perspective view of a self-cleaning cat litter box, showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a enlarged detail view of area 9 shown in FIG. 1 .

The short-dash broken lines in the drawings illustrate the portions of the self-cleaning cat litter box, which form no part of the claimed design. The long dash-short dash broken lines in FIGS. 1 and 9 , represent boundaries for the enlarged view shown in FIG. 9 , and form no part of the claimed design.