Solicitação de exame técnico
#4.1
09/01/1987
RPI 880
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: 09/01/1987. We update with every new RPI gazette, published weekly.
Applicants
Springer Carrier do Nordeste S/A
SP, BR
Inventors
M. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/01/1987
RPI 880
#3.2
07/14/1987
RPI 873
#2.1
04/28/1987
RPI 862
#21.1
Patente extinta em 20/10/1996
07/01/2008
RPI 1956
03/16/1993
RPI 1163
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06/09/1992
RPI 1123
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07/30/1991
RPI 1078
04/23/1991
RPI 1064
#12.1
09/04/1990
RPI 1031
#9.1
04/10/1990
RPI 1013
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