6.2
05/30/1989
RPI 971
Application data
Number
PI8504529Type
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
Sumitomo Electric Industries, Ltd.
JP
Inventors
K. Y. (pessoa física)
JP
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
#4.1
08/11/1987
RPI 877
#3.1
07/15/1986
RPI 821
#2.1
11/19/1985
RPI 787
#21.1
Patente extinta em 17/09/2000
07/15/2008
RPI 1958
#16.1
10/27/1992
RPI 1143
#13.1
07/07/1992
RPI 1127
#15.11
04/07/1992
RPI 1114
#9.1
02/18/1992
RPI 1107
#6.1
05/28/1991
RPI 1069
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.