Concessão da patente
#16.1
05/31/1988
RPI 919
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Official data from INPI
PROCESSO PARA A PRODUÇÃO DE ÓXIDO DE MAGNÉSIO A PARTIR DE SALMOURAS OU ÁGUA-MÃE DE SALINAS CONTENDO CLORETO DE MAGNÉSIO.
ConcedidaInvention Patent
Application data
Number
PI8008179Type
Invention Patent
Filing
12/15/1980
Publication
08/03/1982
Progress at the INPI
- Filing12/15/80
- Publication08/03/82
- Examination09/18/84
- Allowance11/03/87
- Grant05/31/88
- Terminated02/04/92
The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Dalmia Institute Of Scientific And Industrial Research e Orissa Cement Limited.
Inventors
M. K. (pessoa física)
P. D. (pessoa física)
Technical data
IPC Classification
No IPC classification.
Priority claims
GB
8014325 · 04/30/1980
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
03/01/1988
RPI 906
Deferimento
#9.1
11/03/1987
RPI 889
11.8
08/11/1987
RPI 877
Retificação
#15.3
06/09/1987
RPI 868
Exigência - art. 36 da LPI
#6.1
04/01/1986
RPI 806
Exigência - art. 36 da LPI
#6.1
03/26/1985
RPI 753
Solicitação de exame técnico
#4.1
09/18/1984
RPI 726
Publicação do pedido de patente
#3.1
08/03/1982
RPI 615
Anuidade - prazo legal encerrado
#18.2
02/04/1992
RPI 1105
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