Solicitação de exame técnico
#4.1
06/23/1987
RPI 870
Application data
Number
PI8504548Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 06/23/1987. We update with every new RPI gazette, published weekly.
Applicants
N. C. (pessoa física)
JP
Inventors
H. H. (pessoa física)
JP
M. N. (pessoa física)
JP
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
06/23/1987
RPI 870
#3.1
04/22/1987
RPI 861
#2.1
12/03/1985
RPI 789
#21.1
Patente extinta em 12/09/2000
07/15/2008
RPI 1958
#16.1
12/29/1992
RPI 1152
#13.1
09/08/1992
RPI 1136
#15.11
07/28/1992
RPI 1130
#9.1
03/31/1992
RPI 1113
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