The ornamental design for a tire tread and buttress, as shown and described.
FIG. 1 is a perspective view of a tire tread and buttress showing our new
design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a side elevational view thereof; and,
FIG. 4 is an enlarged fragmentary front elevational view thereof.
The pattern is understood to be repeated uniformly throughout the
circumference of the tire tread and buttress.
The broken line showing of the tire sidewalls in FIGS. 1 and 3 of the
drawing is for illustrative purposes only and forms no part of the claimed
design.