Concessão da patente
#16.1
08/26/1986
RPI 827
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Official data from INPI
PROCESSO DE EXTRAÇÃO PARA DESIDRATAÇÃO DE UM MONOÁLCOOL E COMPOSIÇÃO DA MATÉRIA
ConcedidaInvention Patent
Application data
Number
PI8204181Type
Invention Patent
Filing
07/19/1982
Publication
07/12/1983
Progress at the INPI
- Filing07/19/82
- Publication07/12/83
- Examination12/27/83
- Allowance02/12/86
- Grant08/26/86
- Terminated06/26/90
The patent was granted on 08/26/1986 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: 08/26/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Improtec
US
Inventors
D. B. (pessoa física)
US
J. V. (pessoa física)
US
T. C. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
285,307 · 07/20/1981
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
06/24/1986
RPI 818
Deferimento
#9.1
02/12/1986
RPI 799
Exigência - art. 36 da LPI
#6.1
06/04/1985
RPI 763
Solicitação de exame técnico
#4.1
12/27/1983
RPI 688
Publicação do pedido de patente
#3.1
07/12/1983
RPI 664
Pedido de patente depositado
#2.1
08/31/1982
RPI 619
Anuidade - prazo legal encerrado
#18.2
06/26/1990
RPI 1024
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