Carta-patente expirada
#21.1
08/16/1988
RPI 930
The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.
Applicants
ELETROMETALURGICA HENIO LTDA
Inventors
R. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
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11/30/1982
RPI 632
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09/08/1982
RPI 620
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05/04/1982
RPI 602
#6.1
11/17/1981
RPI 578
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