Lamp filament

- Panasonic
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Description

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.

Claims

We claim the ornamental design for a lamp filament, as shown and described.

Referenced Cited
U.S. Patent Documents
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D392057 March 10, 1998 Chen
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Foreign Patent Documents
D1067839 April 2000 JP
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D1225823 December 2004 JP
Patent History
Patent number: D597687
Type: Grant
Filed: Sep 17, 2008
Date of Patent: Aug 4, 2009
Assignee: Panasonic Corporation (Osaka)
Inventors: Shinya Kawagoe (Kadoma), Naotaka Hashimoto (Kadoma), Toshiyasu Kojima (Kadoma), Taku Ikeda (Kadoma)
Primary Examiner: Marcus A. Jackson
Attorney: Brinks Hofer Gilson & Lione
Application Number: 29/324,669
Classifications
Current U.S. Class: Fluorescent (D26/3)