Concessão da patente
#16.1
06/30/1987
RPI 871
The letters patent expired on 12/07/1993: 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: 06/30/1987. We update with every new RPI gazette, published weekly.
Applicants
I. B. (pessoa física)
Inventors
I. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/30/1987
RPI 871
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09/30/1986
RPI 832
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12/24/1985
RPI 792
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12/18/1984
RPI 739
#3.1
10/05/1982
RPI 624
#21.1
12/07/1993
RPI 1201
#20.1
08/07/1990
RPI 1027
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