Doorbell

FIG. 1 is a front perspective view of a doorbell showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right-side elevational view thereof, the left-side elevational view being a mirror image of the right-side elevational view.

The translucent gray overlay on the front, bottom, and rear surfaces of the doorbell is provided to represent portions of the doorbell that are disclaimed. The underlying camera lens, the small green circle above the camera lens on the front surface, the small black circle below the camera lens, a rear section including the rear surface, the speaker holes on the bottom surface, the areas within the broken lines, the broken lines themselves, and the translucent gray overlay itself form no part of the claimed design. The remaining features, including the color thereof, form part of the claimed design.