Concessão da patente
#16.1
11/30/1982
RPI 632
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Official data from INPI
APERFEICOAMENTO EM PROCESSO PARA FABRICACAO DE ACOS CONTENDO NIQUEL E ACOS PRODUZIDOS PELO DITO PROCESSO
ConcedidaInvention Patent
Progress at the INPI
- Filing03/05/76
- Publication
- Examination
- Allowance05/18/82
- Grant11/30/82
- Expired07/27/93
The letters patent expired on 07/27/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 11/30/1982. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
M. S. (pessoa física)
Inventors
T. Y. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
09/08/1982
RPI 620
Deferimento
#9.1
05/18/1982
RPI 604
Exigência - art. 36 da LPI
#6.1
12/15/1981
RPI 582
Carta-patente expirada
#21.1
07/27/1993
RPI 1182
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