Filament for Light Bulb

FIG. 1 is a perspective view of a filament for light bulb showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a front elevation view shown in an environmental position of use.

The broken lines in FIG. 9 showing a lampshade depict environment and form no part of the claimed design. The other broken lines in the drawings depict portions of the filament for light bulb and form no part of the claimed design.