Ultra-thin Cover

FIG. 1 is a front perspective view of an ultra-thin cover, 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;

FIG. 8 is a bottom view thereof;

FIG. 9 is its state diagram thereof;

FIG. 10 is its state diagram thereof; and,

FIG. 11 is its state diagram.

The broken lines in the drawings illustrate the portions of the ultra-thin cover, which form no part of the claimed design.