120
12/12/1989
RPI 999
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Official data from INPI
PROCESSO PARA PREPARAÇÃO DE PIROCATECOL E HIDROQUINONA.
Em AnáliseInvention Patent
Application data
Number
PI8404797Type
Invention Patent
Filing
09/24/1984
Publication
04/29/1986
Progress at the INPI
- Filing09/24/84
- Publication04/29/86
- Examination09/02/86
- Allowance01/24/89
- Grant12/26/90
- Terminated05/14/96
The patent was granted on 12/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 12/12/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
C. E. (pessoa física)
SP, BR
Inventors
G. K. (pessoa física)
BR
R. F. (pessoa física)
BR
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Recurso
#12.1
05/16/1989
RPI 969
Deferimento
#9.1
01/24/1989
RPI 953
Conhecimento de parecer técnico
#7.1
08/16/1988
RPI 930
Pedido de certificado de adição de invenção
#5.1
01/21/1987
RPI 848
Solicitação de exame técnico
#4.1
09/02/1986
RPI 828
Publicação do pedido de patente
#3.1
04/29/1986
RPI 810
Pedido de patente depositado
#2.1
12/04/1984
RPI 737
Anuidade - prazo legal encerrado
#18.2
05/14/1996
RPI 1328
Concessão da patente
#16.1
12/26/1990
RPI 1047
Notificação para pagamento de retribuição
#13.1
10/09/1990
RPI 1036
110
08/07/1990
RPI 1027
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