Electric heater
Description
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. |
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D274836 | July 24, 1984 | Smith |
D276545 | November 27, 1984 | Mori et al. |
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D456498 | April 30, 2002 | Jeng |
D462426 | September 3, 2002 | Jeng |
D462427 | September 3, 2002 | Jeng |
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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
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
Classifications
Current U.S. Class:
Combined Heating And Cooling Or With Diverse Element (D23/328)