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
N. U. (pessoa física)
Inventors
N. U. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
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08/30/1983
RPI 671
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08/31/1982
RPI 619
#13.1
02/02/1982
RPI 589
#9.1
10/06/1981
RPI 572
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