The ornamental design for a ceilingfan, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
1. Ceiling fan
1.1 : Front
1.2 : Left
1.3 : Perspective
1.4 : Perspective
1.5 : Perspective
1.6 : Bottom
1.7 : Top
The portions colored with orange form no part of the claimed design; the right side view is omitted because it is a mirror image of the left side view; 1.1: front; 1.2: left; 1.3: perspective (front, bottom, left); 1.4: perspective (front, top, left); 1.5: perspective (rear, bottom, right); 1.6: bottom; 1.7: top.