Tire thread and buttress

FIG. 1 is a front elevational view of a tire tread and buttress showing our new design, it being understood that the pattern is repeated uniformly throughout the circumference of the tread and buttress;

FIG. 2 is a perspective view thereof in inverted condition;

FIG. 3 is an elevation view of one side thereof on a reduced scale;

FIG. 4 is another perspective view thereof in inverted condition; and,

FIG. 5 is an elevation view of the opposite side thereof on a reduced scale.

The broken line showing of environmental structure in FIGS. 2, 3, 4 and 5 of the drawing is for illustrative purposes only and forms no part of the claimed design.