Solicitação de exame técnico
#4.1
09/12/1989
RPI 986
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: 09/12/1989. We update with every new RPI gazette, published weekly.
Applicants
M. P. (pessoa física)
MG, BR
Inventors
M. P. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/12/1989
RPI 986
#3.1
05/31/1988
RPI 919
#2.1
05/05/1987
RPI 863
#21.1
Patente extinta em 23/10/1996
07/01/2008
RPI 1956
#16.1
03/31/1992
RPI 1113
#13.1
10/29/1991
RPI 1091
#9.1
07/02/1991
RPI 1074
#6.1
12/26/1990
RPI 1047
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