Three-circuit heat exchanger
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Description
Claims
The ornamental design for three-circuit heat exchanger, as shown and described.
Referenced Cited
U.S. Patent Documents
| D84788 | August 1931 | Mertzanoff |
| D85807 | December 1931 | Brabbee |
| 4011905 | March 15, 1977 | Millard |
| 4815534 | March 28, 1989 | Fuerschbach |
| 4987955 | January 29, 1991 | Bergqvist et al. |
| 6179051 | January 30, 2001 | Ayub |
| 7424908 | September 16, 2008 | Blomgren |
| D597184 | July 28, 2009 | De'Longhi |
| D601235 | September 29, 2009 | De'Longhi |
| D601236 | September 29, 2009 | De'Longhi |
| D624166 | September 21, 2010 | Zanolin et al. |
| D626640 | November 2, 2010 | De'Longhi |
| D627042 | November 9, 2010 | De'Longhi |
Patent History
Patent number: D635652
Type: Grant
Filed: Apr 6, 2010
Date of Patent: Apr 5, 2011
Assignee: Swep International AB (Landskrona)
Inventor: Sven Andersson (Hassleholm)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Ania K Dworzecka
Attorney: Merchant & Gould P.C.
Application Number: 29/359,114
Type: Grant
Filed: Apr 6, 2010
Date of Patent: Apr 5, 2011
Assignee: Swep International AB (Landskrona)
Inventor: Sven Andersson (Hassleholm)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Ania K Dworzecka
Attorney: Merchant & Gould P.C.
Application Number: 29/359,114
Classifications