Solicitação de exame técnico
#4.1
06/21/1988
RPI 922
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Application data
Number
PI8604253Type
Invention Patent
Filing
09/04/1986
Publication
08/04/1987
Progress at the INPI
- Filing09/04/86
- Publication08/04/87
- Examination06/21/88
- Allowance05/12/92
- Grant04/27/93
- Expired07/22/08
The letters patent expired on 07/22/2008: 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: 06/21/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Berg-Steel S/A - Fábrica Brasileira de ferramentas
SP, BR
Inventors
A. O. (pessoa física)
BR
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação antecipada
#3.2
08/04/1987
RPI 876
Pedido de patente depositado
#2.1
03/17/1987
RPI 856
Carta-patente expirada
#21.1
Patente extinta em 04/09/2001
07/22/2008
RPI 1959
Concessão da patente
#16.1
04/27/1993
RPI 1169
Notificação para pagamento de retribuição
#13.1
10/06/1992
RPI 1140
Deferimento
#9.1
05/12/1992
RPI 1119
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