Concessão da patente
#16.1
11/24/1987
RPI 892
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Official data from INPI
PROCESSO PARA A PREPARACAO DE PRODUTOS DE MINERIO DE CROMO E MAGNESIA RESISTENTE AO FOGO
ConcedidaInvention Patent
Application data
Number
PI8301745Type
Invention Patent
Filing
04/08/1982
Publication
12/13/1983
Progress at the INPI
- Filing04/08/82
- Publication12/13/83
- Examination07/10/84
- Allowance05/05/87
- Grant11/24/87
- Terminated04/25/95
The patent was granted on 11/24/1987 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: 11/24/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
VEITSCHER MAGNESITWERKE AG [AT]
Inventors
G. H. (pessoa física)
P. A. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
09/22/1987
RPI 883
Deferimento
#9.1
05/05/1987
RPI 863
Exigência - art. 36 da LPI
#6.1
05/07/1985
RPI 759
Solicitação de exame técnico
#4.1
07/10/1984
RPI 716
Publicação do pedido de patente
#3.1
12/13/1983
RPI 686
Pedido de patente depositado
#2.1
05/24/1983
RPI 657
Anuidade - prazo legal encerrado
#18.2
04/25/1995
RPI 1273
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