Solicitação de exame técnico
#4.1
01/17/1989
RPI 952
The letters patent expired on 07/01/2008: 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: 01/17/1989. We update with every new RPI gazette, published weekly.
Applicants
ALCAN BRASIL [BR]
Inventors
F. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
01/17/1989
RPI 952
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07/05/1988
RPI 924
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05/05/1987
RPI 863
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Patente extinta em 15/12/1996
07/01/2008
RPI 1956
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04/02/1991
RPI 1061
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