Concessão da patente
#16.1
11/24/1987
RPI 892
Progress at the INPI
- Filing05/12/80
- Publication
- Examination03/01/83
- Allowance07/14/87
- Grant11/24/87
- Expired11/21/95
The letters patent expired on 11/21/1995: 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: 11/24/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Societe Française D" Electrometallurgie "SOFREM'
FR
Inventors
C. J. (pessoa física)
D. M. (pessoa física)
I. J. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Deferimento
#9.1
07/14/1987
RPI 873
Exigência - art. 36 da LPI
#6.1
11/25/1986
RPI 840
Conhecimento de parecer técnico
#7.1
07/31/1984
RPI 719
Exigência - art. 36 da LPI
#6.1
12/27/1983
RPI 688
Solicitação de exame técnico
#4.1
03/01/1983
RPI 645
Carta-patente expirada
#21.1
11/21/1995
RPI 1303
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