Carta-patente expirada
#21.1
Patente extinta em 14/03/2005
05/11/2010
RPI 2053
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Official data from INPI
APARELHO E MÉTODO DE FAZER UM TRANSFORMADOR TENDO UM NÚCLEO AMORFO
Arquivada/ExtintaInvention Patent
Application data
Number
PI9001400Type
Invention Patent
Filing
03/14/1990
Publication
02/26/1991
Progress at the INPI
- Filing03/14/90
- Publication02/26/91
- Examination05/21/91
- Allowance12/26/95
- Grant03/25/97
- Expired05/11/10
The letters patent expired on 05/11/2010: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 05/11/2010. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Asea Brown Boveri Inc
US
Inventors
F. G. (pessoa física)
US
T. C. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
03/25/1997
RPI 1373
Notificação para pagamento de retribuição
#13.1
06/25/1996
RPI 1334
Deferimento
#9.1
12/26/1995
RPI 1308
Solicitação de exame técnico
#4.1
05/21/1991
RPI 1068
Publicação antecipada
#3.2
02/26/1991
RPI 1056
Pedido de patente depositado
#2.1
06/05/1990
RPI 1021
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