Lamp bulb

Description

FIG. 1 is a front, right-side perspective view of a lamp bulb, showing the new design;

FIG. 2 is a right-side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left-side elevational view thereof;

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

FIG. 6 is a bottom plan view thereof.

The broken lines depict parts of the lamp bulb that form no part of the claimed design.

Claims

The ornamental design for a lamp bulb as shown and described.