Solicitação de exame técnico
#4.1
10/18/1988
RPI 939
The letters patent expired on 07/01/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.
Applicants
J. K. (pessoa física)
SP, BR
Inventors
J. N. (pessoa física)
BR
M. K. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/18/1988
RPI 939
#3.2
08/23/1988
RPI 931
#2.1
05/03/1988
RPI 915
#21.1
Patente extinta em 20/01/1998
07/01/2008
RPI 1956
#20.1
03/16/1993
RPI 1163
12/08/1992
RPI 1149
#17.1
06/16/1992
RPI 1124
#16.1
04/30/1991
RPI 1065
#13.1
12/26/1990
RPI 1047
#9.1
09/11/1990
RPI 1032
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