Cooling fin

Abstract

Claims

The ornamental design for a cooling fin, as shown and described.

Description

(1) FIG. 1 is a perspective view of a cooling fin showing my new design;

(2) FIG. 2 is a front view thereof;

(3) FIG. 3 is a rear view thereof;

(4) FIG. 4 is a left side view thereof;

(5) FIG. 5 is a right side view thereof;

(6) FIG. 6 is a top view thereof; and,

(7) FIG. 7 is a bottom view thereof.