The ornamental design for a sidewall of a pneumatictire, as shown and described.
FIG. 1 is a perspective view of a sidewall of a pneumatic tire showing our new design.
FIG. 2 is a side elevational view thereof; and,
FIG. 3 is a front elevational view.
In the drawings, the broken lines defining the tire tread, inner bead and the unclaimed sidewall depict environmental subject matter that forms no part of the claimed design. The dash-dot lines represent the peripheral boundary between the claimed sidewall and unclaimed subject matter.
The sidewall pattern is understood to repeat uniformly throughout the periphery of the tire, as shown schematically in solid lines.