Light bulb filament

USD1124427SActive Publication Date: 2026-04-28JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO LTD

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[0001] FIG. 1 is a front perspective view of the light bulb filament showing our new design;

[0002] FIG. 2 is a front view of the light bulb filament;

[0003] FIG. 3 is a rear view of the light bulb filament;

[0004] FIG. 4 is a left side view of the light bulb filament;

[0005] FIG. 5 is a right side view of the light bulb filament;

[0006] FIG. 6 is a top plan view of the light bulb filament;

[0007] FIG. 7 is a bottom plan view of the light bulb filament;

[0008] FIG. 8 is an enlarged top plan view of the light bulb filament; and,

[0009] FIG. 9 is an enlarged bottom plan view of the light bulb filament.

[0010] The broken lines depicting the base and stem illustrate unclaimed subject matter for the design.

The ornamental design for a light bulb filament as shown and described.