6.2
05/02/1989
RPI 967
Application data
Number
PI8503971Type
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: 05/02/1989. We update with every new RPI gazette, published weekly.
Applicants
Kurosaki Refractories Co., Ltd.
JP
Inventors
T. K. (pessoa física)
JP
T. M. (pessoa física)
JP
IPC Classification
Priority claims
JP
59-174692 · 08/21/1984
JP
59-182271 · 08/30/1984
Publications in the Brazilian Industrial Property Gazette (RPI).
05/02/1989
RPI 967
#4.1
11/18/1986
RPI 839
#3.1
06/03/1986
RPI 815
#2.1
10/22/1985
RPI 783
#21.1
Patente extinta em 20/08/2000
07/15/2008
RPI 1958
#16.1
10/26/1993
RPI 1195
#9.1
06/01/1993
RPI 1174
#6.1
09/29/1992
RPI 1139
#6.1
12/10/1991
RPI 1097
#7.1
05/14/1991
RPI 1067
From the same holder
Same category
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