Carta-patente expirada
#21.1
Patente extinta em 07/12/2004
12/29/2009
RPI 2034
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Official data from INPI
COMUTADOR ELÉTRICO DE QUATRO VIAS
Arquivada/ExtintaInvention Patent
Application data
Number
PI8906404Type
Invention Patent
Filing
12/07/1989
Publication
05/07/1991
Progress at the INPI
- Filing12/07/89
- Publication05/07/91
- Examination08/06/91
- Allowance03/07/95
- Grant11/28/95
- Expired12/29/09
The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
L. K. (pessoa física)
PR, BR
Leopold Kostal GmbH & Co. Kg
DE
Inventors
R. A. (pessoa física)
DE
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
11/28/1995
RPI 1304
Notificação para pagamento de retribuição
#13.1
08/08/1995
RPI 1288
Deferimento
#9.1
03/07/1995
RPI 1266
Solicitação de exame técnico
#4.1
08/06/1991
RPI 1079
Publicação do pedido de patente
#3.1
05/07/1991
RPI 1066
Pedido de patente depositado
#2.1
03/20/1990
RPI 1010
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