Electric heater

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Description

FIG. 1 is a perspective view of the electric heater;

FIG. 2 is a front elevational view of the electric heater;

FIG. 3 is a left elevational view of the electric heater; and,

FIG. 4 is a rear elevational view of the electric heater.

Claims

We claim the ornamental design for the electric heater, as shown and described.

Referenced Cited
U.S. Patent Documents
D36443 July 1903 Boeck
D115100 June 1939 Masters et al.
2474594 June 1949 Rausch et al.
D274836 July 24, 1984 Smith
D276545 November 27, 1984 Mori et al.
D452301 December 18, 2001 Schwartz et al.
D456498 April 30, 2002 Jeng
D462426 September 3, 2002 Jeng
D462427 September 3, 2002 Jeng
D467651 December 24, 2002 Ashton
D472623 April 1, 2003 Bossler
D543610 May 29, 2007 Catron
D570977 June 10, 2008 McColgin et al.
D570978 June 10, 2008 McColgin et al.
Patent History
Patent number: D637273
Type: Grant
Filed: Oct 8, 2010
Date of Patent: May 3, 2011
Inventors: Binggang Weng (Guangdong), Changsheng Liang (Guangdong)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Ania K Dworzecka
Attorney: Whitham Curtis Christofferson & Cook, PC
Application Number: 29/376,569