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
C. A. (pessoa física)
CORREA E
L. J. (pessoa física)
Inventors
C. A. (pessoa física)
C. E. (pessoa física)
L. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
08/16/1988
RPI 930
#16.1
02/28/1984
RPI 697
#13.1
11/08/1983
RPI 681
#9.1
07/12/1983
RPI 664
05/24/1983
RPI 657
#6.1
06/08/1982
RPI 607
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Same category
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