Deferimento
#9.1
10/10/1989
RPI 990
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Official data from INPI
PROCESSO PARA A LIXIVIAÇÃO COM ÁCIDO SULFÚRICO DE MINÉRIO NIQUELÍFERO
DeferidaInvention Patent
Application data
Number
PI8303262Type
Invention Patent
Filing
06/20/1983
Publication
02/07/1984
Progress at the INPI
- Filing06/20/83
- Publication02/07/84
- Examination05/27/86
- Allowance10/10/89
- Grant04/24/90
- Terminated08/29/95
The patent was granted on 04/24/1990 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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Compagnie Française D'Entreprises Minieres Metallurgiques Et D'Investissements COFREMMI
FR
Inventors
G. L. (pessoa física)
US
M. J. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Exigência - art. 36 da LPI
#6.1
10/11/1988
RPI 938
6.2
02/24/1987
RPI 853
Solicitação de exame técnico
#4.1
05/27/1986
RPI 814
Publicação do pedido de patente
#3.1
02/07/1984
RPI 694
Pedido de patente depositado
#2.1
08/02/1983
RPI 667
Anuidade - prazo legal encerrado
#18.2
08/29/1995
RPI 1291
Concessão da patente
#16.1
04/24/1990
RPI 1015
Notificação para pagamento de retribuição
#13.1
02/06/1990
RPI 1005
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