20.4
06/28/1988
RPI 923
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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
NORTOF MAQUINAS E EQUIPAMENTOS [BR]
Inventors
S. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/28/1988
RPI 923
#20.1
06/21/1988
RPI 922
#16.1
12/30/1986
RPI 845
#13.1
09/02/1986
RPI 828
#9.1
04/29/1986
RPI 810
#4.1
06/11/1985
RPI 764
#3.1
03/12/1985
RPI 751
#2.1
10/11/1983
RPI 677
#21.1
12/07/1993
RPI 1201
Same category
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