Solicitação de exame técnico
#4.1
12/08/1987
RPI 894
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Official data from INPI
PROCESSO PARA A PREPARAÇÃO DE OLEFINAS LINEARES C - C
Em AnáliseInvention Patent
Application data
Number
PI8501802Type
Invention Patent
Filing
04/16/1985
Publication
12/10/1985
Progress at the INPI
- Filing04/16/85
- Publication12/10/85
- Examination12/08/87
- Allowance05/26/92
- Grant12/29/92
- Expired07/15/08
The letters patent expired on 07/15/2008: 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: 12/08/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Shell Internationale Research Maatschappij B.V., companhia holandesa
NL
Inventors
S. S. (pessoa física)
NL
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
12/10/1985
RPI 790
Pedido de patente depositado
#2.1
07/02/1985
RPI 767
Carta-patente expirada
#21.1
Patente extinta em 16/04/2000
07/15/2008
RPI 1958
Concessão da patente
#16.1
12/29/1992
RPI 1152
Notificação para pagamento de retribuição
#13.1
10/20/1992
RPI 1142
Deferimento
#9.1
05/26/1992
RPI 1121
Exigência - art. 36 da LPI
#6.1
07/23/1991
RPI 1077
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