Case for Tablet Computer

FIG. 1 is a front, top perspective view of a case for tablet computer showing the claimed design; FIG. 2 is a rear, bottom 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. The broken lines illustrate portions of the case for tablet computer which form no part of the claimed design.