Concessão da patente
#16.1
05/27/1986
RPI 814
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Official data from INPI
Processo e dispositivo para a impregnação de materiais porosos, principalmente de produtos de carvão para a fabricação de elétrodos.
ConcedidaInvention Patent
Application data
Number
PI8107904Type
Invention Patent
Filing
12/04/1981
Publication
09/14/1982
Progress at the INPI
- Filing12/04/81
- Publication09/14/82
- Examination05/15/84
- Allowance10/15/85
- Grant05/27/86
- Terminated02/04/92
The patent was granted on 05/27/1986 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: 05/27/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
C. S. (pessoa física)
DE
Inventors
S. O. (pessoa física)
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Deferimento
#9.1
10/15/1985
RPI 782
Exigência - art. 36 da LPI
#6.1
01/15/1985
RPI 743
Solicitação de exame técnico
#4.1
05/15/1984
RPI 708
Publicação do pedido de patente
#3.1
09/14/1982
RPI 621
Pedido de patente depositado
#2.1
01/26/1982
RPI 588
Anuidade - prazo legal encerrado
#18.2
02/04/1992
RPI 1105
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