Gas insulated switchgear
Latest Mitsubishi Electric Corporation Patents:
Description
Claims
The ornamental design for a gas insulated switchgear, as shown.
Referenced Cited
U.S. Patent Documents
2401963 | June 1946 | Rietz et al. |
D159112 | June 1950 | van Ryan |
D163986 | July 1951 | Baker et al. |
3602667 | August 1971 | Reichl et al. |
3823346 | July 1974 | Olsen |
4059816 | November 22, 1977 | Bonecutter et al. |
4109124 | August 22, 1978 | Boersma et al. |
D256353 | August 12, 1980 | Evans |
4320377 | March 16, 1982 | Shaw |
4379957 | April 12, 1983 | Calvino |
D285434 | September 2, 1986 | Panas |
4831218 | May 16, 1989 | Wright |
4862319 | August 29, 1989 | Suzuyama et al. |
D312071 | November 13, 1990 | Urbanek |
D320977 | October 22, 1991 | Biller et al. |
D321170 | October 29, 1991 | Ramos et al. |
D321508 | November 12, 1991 | Ramos |
5350892 | September 27, 1994 | Rozier |
5952636 | September 14, 1999 | Morita et al. |
5991148 | November 23, 1999 | Heil et al. |
6134100 | October 17, 2000 | Hageli et al. |
6335502 | January 1, 2002 | Kikukawa et al. |
6545241 | April 8, 2003 | Franchi et al. |
6573469 | June 3, 2003 | Piazza |
6784392 | August 31, 2004 | Piazza et al. |
D520959 | May 16, 2006 | Nagai et al. |
20040079731 | April 29, 2004 | Rokunohe et al. |
20040251443 | December 16, 2004 | Wu |
20050150869 | July 14, 2005 | Vaghini et al. |
20050236371 | October 27, 2005 | Cameroni et al. |
20060283841 | December 21, 2006 | Sologuren-Sanchez et al. |
Patent History
Patent number: D552561
Type: Grant
Filed: Oct 16, 2006
Date of Patent: Oct 9, 2007
Assignee: Mitsubishi Electric Corporation (Tokyo)
Inventors: Takuya Otsuka (Tokyo), Hitoshi Sadakuni (Tokyo), Daisuke Fujita (Tokyo)
Primary Examiner: Selina Sikder
Assistant Examiner: Thomas Johannes
Attorney: Sughrue Mion, PLLC
Application Number: 29/267,449
Type: Grant
Filed: Oct 16, 2006
Date of Patent: Oct 9, 2007
Assignee: Mitsubishi Electric Corporation (Tokyo)
Inventors: Takuya Otsuka (Tokyo), Hitoshi Sadakuni (Tokyo), Daisuke Fujita (Tokyo)
Primary Examiner: Selina Sikder
Assistant Examiner: Thomas Johannes
Attorney: Sughrue Mion, PLLC
Application Number: 29/267,449
Classifications
Current U.S. Class:
Circuit Breaker, Current Suppressor Or Fuse, Or Casing Therefor (19) (D13/160)