Deferimento
#9.1
12/05/1989
RPI 998
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Official data from INPI
PROCESSO PARA PREPARAR POLIIMIDA, POLI-(AMIDA-IMIDA), POLI-(ESTERIMIDA), ÁCIDO DE POLIAMIDA, POLI-(AMIDA-ÁCIDO DE AMIDA) OU POLI-(ÁCIDO DE ESTERAMIDA)
DeferidaInvention Patent
Application data
Number
PI8502578Type
Invention Patent
Filing
05/30/1985
Publication
02/04/1986
Progress at the INPI
- Filing05/30/85
- Publication02/04/86
- Examination03/15/88
- Allowance12/05/89
- Grant06/26/90
- Terminated07/25/95
The patent was granted on 06/26/1990 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: 12/05/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
M&T Chemicals Inc.
US
Inventors
A. B. (pessoa física)
US
R. V. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Exigência - art. 36 da LPI
#6.1
06/20/1989
RPI 974
Solicitação de exame técnico
#4.1
03/15/1988
RPI 908
Publicação do pedido de patente
#3.1
02/04/1986
RPI 798
Pedido de patente depositado
#2.1
08/13/1985
RPI 773
Anuidade - prazo legal encerrado
#18.2
07/25/1995
RPI 1286
Licença compulsória (variante)
#20.2
03/24/1992
RPI 1112
Republicação - classificação IPC
#15.11
06/11/1991
RPI 1071
Concessão da patente
#16.1
06/26/1990
RPI 1024
Notificação para pagamento de retribuição
#13.1
04/10/1990
RPI 1013
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