14.1
08/29/1989
RPI 984
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Official data from INPI
PROCESSO PARA A SEPARAÇÃO DE T-BUTILESTIRENO DE UM EFLUENTE DE ZONA DE OXIDESIDROGENAÇÃO CONTENDO T-BUTILETILBENZENO E T-BUTILESTIRENO
Em AnáliseInvention Patent
Application data
Number
PI8504172Type
Invention Patent
Filing
08/29/1985
Publication
06/24/1986
Progress at the INPI
Awaiting grant fee payment- Filing08/29/85
- Publication06/24/86
- Examination03/08/88
- Allowance12/03/91
- Grant
- In force
The application was allowed by the INPI on 12/03/1991. The grant of the letters patent is being processed.
Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Rexene Products Company
US
Inventors
G. C. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Solicitação de exame técnico
#4.1
03/08/1988
RPI 907
Publicação do pedido de patente
#3.1
06/24/1986
RPI 818
Pedido de patente depositado
#2.1
11/12/1985
RPI 786
Retificação
#15.3
06/16/1992
RPI 1124
Deferimento
#9.1
12/03/1991
RPI 1096
14.4
02/13/1990
RPI 1006
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