Publicação do pedido de patente
#3.1
04/26/1988
RPI 914
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Official data from INPI
PROCESSO PARA INCREMENTAR AS QUALIDADES DE ARGAMASSA DE CIMENTO E CONCRETO
PublicadaInvention Patent
Application data
Number
PI8704654Type
Invention Patent
Filing
09/08/1987
Publication
04/26/1988
Progress at the INPI
- Filing09/08/87
- Publication04/26/88
- Examination08/14/90
- Allowance10/11/94
- Grant06/27/95
- Expired07/29/08
The letters patent expired on 07/29/2008: 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: 04/26/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
A. A. (pessoa física)
SE
Inventors
G. S. (pessoa física)
SE
S. Z. (pessoa física)
SE
Technical data
IPC Classification
Priority claims
SE
8603779-3 · 09/09/1986
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de patente depositado
#2.1
11/24/1987
RPI 892
Carta-patente expirada
#21.1
Patente extinta em 08/09/2002
07/29/2008
RPI 1960
Concessão da patente
#16.1
06/27/1995
RPI 1282
Notificação para pagamento de retribuição
#13.1
02/21/1995
RPI 1264
Deferimento
#9.1
10/11/1994
RPI 1245
Solicitação de exame técnico
#4.1
08/14/1990
RPI 1028
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