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
D15685 January 1885 Hurdle
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2100879 November 1937 Smith
2880352 March 1959 Hart
3416024 December 1968 Young
3777207 December 1973 Notelteirs et al.
3875443 April 1975 Nakamura
4297611 October 27, 1981 Cortorillo
4568854 February 4, 1986 Westlund et al.
5252888 October 12, 1993 Topel et al.
D392057 March 10, 1998 Chen
D395714 June 30, 1998 Murata
D395716 June 30, 1998 Murata
D410554 June 1, 1999 Guyton
D450860 November 20, 2001 Moriyama et al.
D512788 December 13, 2005 Komiya et al.
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Foreign Patent Documents
D1067839 April 2000 JP
D1119354 August 2001 JP
D1129862 December 2001 JP
D1225823 December 2004 JP
Patent History
Patent number: D581064
Type: Grant
Filed: Jun 29, 2007
Date of Patent: Nov 18, 2008
Assignee: Panasonic Corporation (Osaka)
Inventors: Shinya Kawagoe (Kadoma), Naotaka Hashimoto (Kadoma), Toshiyasu Kojima (Kadoma), Taku Ikeda (Kadoma)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Dana L Sipos
Attorney: Brinks Hofer Gilson & Lione
Application Number: 29/289,021
Classifications
Current U.S. Class: Electric Light Bulb (34) (D26/2)