Office Chair

FIG. 1 is an upper, right, front perspective view of my new design for an office chair.

FIG. 2 is an upper, left, rear perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left elevation view thereof.

FIG. 6 is a right elevation view thereof.

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The short, evenly spaced broken lines on the backrest and seat indicate portions of the article that form no part of the claimed design.

The evenly dashed broken lines shown in the figures depict portions of the office chair that form no part of the claimed design.

The long and short broken lines shown in the figures are boundary lines; the area within the boundary lines forms no part of the claimed design.