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
AZEVEDO
O. J. (pessoa física)
Inventors
A. (pessoa física)
O. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
#20.1
08/16/1983
RPI 669
#16.1
01/25/1983
RPI 640
#13.1
09/21/1982
RPI 622
#9.1
06/01/1982
RPI 606
Same category
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