Anuidade - prazo legal encerrado
#18.2
08/25/1987
RPI 879
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Official data from INPI
PROCESSO DE OBTENCAO DE CONCENTRADOS DE NIQUEL DE ALTO TEOR,A PARTIR DE SEUS MINERIOS OXIDADOS POR CALCINACAO CLORETANTE EM PRESENCA DE CARBONATO DE CALCIO(CALCARIO)OXIDO DE CALCIO E/OU OUTROS OXIDOS OU CARBONATOS ALCALINOS
Em AnáliseInvention Patent
Progress at the INPI
- Filing12/07/76
- Publication
- Examination
- Allowance07/20/82
- Grant03/29/83
- Terminated08/25/87
The patent was granted on 03/29/1983 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: 08/25/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
T. C. (pessoa física)
Inventors
A. A. (pessoa física)
L. A. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
03/29/1983
RPI 649
Notificação para pagamento de retribuição
#13.1
12/07/1982
RPI 633
Deferimento
#9.1
07/20/1982
RPI 613
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