Solicitação de exame técnico
#4.1
11/24/1987
RPI 892
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: 11/24/1987. We update with every new RPI gazette, published weekly.
Applicants
E. P. (pessoa física)
BR
Inventors
E. P. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
11/24/1987
RPI 892
#3.2
10/06/1987
RPI 885
#2.1
05/05/1987
RPI 863
#21.1
Patente extinta em 19/11/1996
07/01/2008
RPI 1956
#16.1
11/26/1991
RPI 1095
#13.1
08/06/1991
RPI 1079
#9.1
02/19/1991
RPI 1055
#6.1
10/02/1990
RPI 1035
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