Patent
   D821002
Priority
Sep 23 2016
Filed
Mar 16 2017
Issued
Jun 19 2018
Expiry
Jun 19 2033
Assg.orig
Entity
unknown
6
5
n/a
The ornamental design for a bulb filament, as shown and described.

FIG. 1 is a front view of a bulb filament showing our new design, with the back view being a mirror image thereof;

FIG. 2 is a side view of the bulb filament shown in FIG. 1, with the other side view being a mirror image;

FIG. 3 is a top view of the bulb filament shown in FIG. 1; and,

FIG. 4 is a bottom view of the bulb filament shown in FIG. 1.

The broken lines depicting the glass bulb, base, and portions of the stem show unclaimed subject matter for the design.

Ward, Joshua, Armitage, Joseph, Pleass, James Rhodri

Patent Priority Assignee Title
D980462, Jan 28 2022 Light source
ER2310,
ER3443,
ER5846,
ER8045,
ER8807,
Patent Priority Assignee Title
D443703, Sep 04 1996 Lightbulb
D506840, Oct 14 2003 Koninklijke Philips Electronics, N.V. Energy saving lamp
D528674, Aug 08 2005 LED lamp
D538953, Sep 16 2005 Koninklijke Philips Electronics N.V. LED bulb
D540961, Jun 26 2006 Ledvance LLC Light bulb
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 16 2017Tala Energy Limited(assignment on the face of the patent)
Apr 30 2018WARD, JOSHUATala Energy LimitedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0460620196 pdf
Apr 30 2018ARMITAGE, JOSEPHTala Energy LimitedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0460620196 pdf
Apr 30 2018PLEASS, JAMES RHODRITala Energy LimitedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0460620196 pdf
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