Concessão da patente
#16.1
11/28/1989
RPI 997
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Official data from INPI
APERFEIÇOAMENTOS EM PROCESSO PARA INIBIR A FORMAÇÃO DE CROSTA DE SÍLICA NA LIXIVIAÇÃO DE MINÉRIO LATERÍTICO DE NÍQUEL
ConcedidaInvention Patent
Application data
Number
PI8303267Type
Invention Patent
Filing
06/20/1983
Publication
01/29/1985
Progress at the INPI
- Filing06/20/83
- Publication01/29/85
- Examination03/04/87
- Allowance05/23/89
- Grant11/28/89
- Terminated08/29/95
The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
COFREMMI
Compagnie Française D'Entreprises Minieres Metallurgiques Et D'Investissements Cofremmi
FR
Inventors
B. Q. (pessoa física)
US
K. I. (pessoa física)
US
W. C. (pessoa física)
US
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
09/19/1989
RPI 987
Deferimento
#9.1
05/23/1989
RPI 970
Exigência - art. 36 da LPI
#6.1
12/27/1988
RPI 949
Solicitação de exame técnico
#4.1
03/04/1987
RPI 854
Publicação do pedido de patente
#3.1
01/29/1985
RPI 745
Pedido de patente depositado
#2.1
08/02/1983
RPI 667
Anuidade - prazo legal encerrado
#18.2
08/29/1995
RPI 1291
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