Chair backrest

Description

FIG. 1 is a top, front, and right side perspective view of a chair backrest, showing my new design;

FIG. 2 is a bottom, rear, and left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an enlarged view of a portion labeled 9 in FIG. 8.

The broken lines in the drawings depict portions of the chair backrest that form no part of the claimed design.

The dash dot dash lines in FIG. 8 and FIG. 9 are for purpose of depicting the boundary of the enlarged view and form no part of the claim.

Claims

The ornamental design for a chair backrest, as shown and described.