Ceiling Fan

FIG. 1 is a bottom perspective view of a ceiling fan, showing my new design. FIG. 2 is a top perspective view thereof. FIG. 3 is a top view thereof. FIG. 4 is a bottom view thereof. FIG. 5 is a front view thereof. FIG. 6 is a rear view thereof. FIG. 7 is a left side view thereof; and, FIG. 8 is a right side view thereof. Portions of the ceiling fan shown in broken lines form no part of the claimed design. The jagged break lines represent broken away symbols and form no part of the claimed design. The appearance of any portion of the ceiling fan blades between the jagged break lines forms no part of the claimed design.