Chair base

Description

FIG. 1 is a front, right, top perspective view of a chair base showing the new design;

FIG. 2 is a top, front, perspective view thereof;

FIG. 3 is a top, rear, perspective view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines depict environmental structure that forms no part of the claimed design.

Claims

The ornamental design for a chair base as shown and described.