Air Conditioner

4 . 1 is a perspective view of an air conditioner showing my new design;

4 . 2 is an alternative perspective view thereof;

4 . 3 is a front elevation view thereof;

4 . 4 is a rear elevation view thereof;

4 . 5 is a left elevation view thereof;

4 . 6 is a right elevation view thereof;

4 . 7 is a top plan view thereof; and

4 . 8 is a bottom plan view thereof.

The broken lines shown in the drawings depict portions of the air conditioner that form no part of the claimed design; the shade lines represent surface shading and are not surface ornamentation or decoration.