Patent
   D819843
Priority
Feb 17 2017
Filed
May 29 2017
Issued
Jun 05 2018
Expiry
Jun 05 2033
Assg.orig
Entity
unknown
0
5
n/a
The ornamental design for a light bulb filament, as shown and described.

FIG. 1 is a perspective front View of a light bulb filament;

FIG. 2 is a left side View thereof;

FIG. 3 is a front View thereof;

FIG. 4 is a right side View thereof;

FIG. 5 is a rear View thereof;

FIG. 6 is a top plan View thereof;

FIG. 7 is a bottom plan View thereof; and,

FIG. 8 is a perspective rear View thereof.

Jiang, Hongkui, Gao, Yanzeng, Wu, Feng, Lin, Hongbin

Patent Priority Assignee Title
Patent Priority Assignee Title
D422099, May 28 1999 Lamp
D549360, Jun 16 2006 KEETAT LIGHTING FACTORY Light bulb
D550864, Apr 23 2007 Ledvance LLC Lamp
D664683, May 16 2011 Panasonic Corporation Light-emitting diode lamp
D671663, Feb 22 2012 Panasonic Corporation Light emitting diode lamp
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 19 2017GAO, YANZENGXIAMEN ECO LIGHTING CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0425220147 pdf
May 19 2017WU, FENGXIAMEN ECO LIGHTING CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0425220147 pdf
May 19 2017LIN, HONGBINXIAMEN ECO LIGHTING CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0425220147 pdf
May 20 2017JIANG, HONGKUIXIAMEN ECO LIGHTING CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0425220147 pdf
May 29 2017XIAMEN ECO LIGHTING CO., LTD.(assignment on the face of the patent)
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