Solicitação de exame técnico
#4.1
05/24/1988
RPI 918
Application data
Number
PI8704732Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 05/24/1988. We update with every new RPI gazette, published weekly.
Applicants
Companhia Industrial São Paulo e Rio - Cisper
RJ, BR
Inventors
R. R. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
05/24/1988
RPI 918
#3.2
12/29/1987
RPI 897
#2.1
11/24/1987
RPI 892
#21.1
Patente extinta em 11/09/2002
07/29/2008
RPI 1960
#16.1
06/30/1992
RPI 1126
#13.1
12/17/1991
RPI 1098
#9.1
08/20/1991
RPI 1081
#6.1
03/26/1991
RPI 1060
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Same category
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