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
O. A. (pessoa física)
O. N. (pessoa física)
Inventors
O. A. (pessoa física)
O. N. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
#20.1
08/30/1983
RPI 671
#16.1
08/31/1982
RPI 619
#13.1
01/26/1982
RPI 588
10/20/1981
RPI 574
From the same holder
Same category
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