Tread portion of an automobile tire

FIG. 1 is a perspective view of the tread portion of an automobile tire showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a partial front view of the tread shown enlarged for clarity of illustration;

FIG. 6 is a sectional view taken in the direction defined by line 6 - 6 in FIG. 5 ; and,

FIG. 7 is a sectional view taken in the direction defined by line 7 - 7 in FIG. 5 .

The broken lines illustrate portions of the sidewall, bead, and interior surface of a tire, and form no part of the claimed design.