Tread Portion of an Automobile Tire

FIG. 1 is a perspective view of tread portion of an automobile tire showing my design; FIG. 2 is a front view thereof; FIG. 3 is a top view thereof; FIG. 4 is a bottom view thereof; FIG. 5 is a right side view thereof; FIG. 6 is a fragmentary enlarged front view surrounded by line 6 - 6 and line 6 ′- 6 ′ in FIG. 2 thereof; FIG. 7 is an end face view taken along line 7 - 7 in FIG. 6 thereof; and, FIG. 8 is an end face view taken along line 8 - 8 in FIG. 6 thereof. In the drawings, the broken lines are for defining the sidewall, inner bead and the boundary between the clamed tire tread and the unclaimed sidewall, and form no part of the claimed design.