Chair back

Description

FIG. 1 is a front, left and bottom perspective view of a chair back showing my design;

FIG. 2 is a rear, right and top perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a right-side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 illustrates a perspective view of the chair back in its environment on a chair;

FIG. 10 illustrates a perspective view of the chair back in its environment on a chair; and,

FIG. 11 illustrates a perspective view of the chair back in its environment on a chair.

The dash-dash broken lines, and the white-washed areas within the broken lines, show the environmental chair and form no part of the claimed design.

Claims

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