6.2
05/30/1989
RPI 971
Application data
Number
PI8504185Type
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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Hitachi, Ltd
JP
Inventors
H. Y. (pessoa física)
JP
K. S. (pessoa física)
JP
T. O. (pessoa física)
JP
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
#4.1
08/18/1987
RPI 878
#15.11
09/02/1986
RPI 828
#3.1
06/24/1986
RPI 818
#2.1
10/29/1985
RPI 784
#21.1
Patente extinta em 29/08/2000
07/15/2008
RPI 1958
#16.1
11/24/1992
RPI 1147
#13.1
07/28/1992
RPI 1130
#13.1
05/05/1992
RPI 1118
#9.1
12/10/1991
RPI 1097
From the same holder
Same category
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