Patent
   D597688
Priority
Jun 29 2007
Filed
Sep 17 2008
Issued
Aug 04 2009
Expiry
Aug 04 2023
Assg.orig
Entity
unknown
1
24
n/a
We claim the ornamental design for a lamp filament, as shown and described.

FIG. 1 is a top, front, right side perspective view of a lamp filament showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The bottom portion of the lamp filament shown in broken lines illustrates a portion of the design that forms no part of the claim.

Hashimoto, Naotaka, Kawagoe, Shinya, Kojima, Toshiyasu, Ikeda, Taku

Patent Priority Assignee Title
7932665, Dec 02 2008 OSRAM SYLVANIA Inc Dual filament lamp for rapid temperature processing
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 17 2008Panasonic Corporation(assignment on the face of the patent)
Oct 01 2008MATSUSHITA ELECTRIC INDUSTRIAL CO , LTD Panasonic CorporationCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0217740425 pdf
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