Publicação do pedido de patente
#3.1
05/30/1989
RPI 971
Application data
Number
PI8805284Type
Filing
Publication
The letters patent expired on 12/18/2012: 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
Kurosaki Refractories CO., Ltd
JP
Inventors
H. S. (pessoa física)
JP
T. H. (pessoa física)
JP
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
05/30/1989
RPI 971
#2.1
02/28/1989
RPI 958
#21.1
Patente extinta em 13/10/2008
12/18/2012
RPI 2189
#16.1
07/28/1998
RPI 1440
#9.1
05/20/1997
RPI 1381
#4.1
08/21/1990
RPI 1029
From the same holder
Same category
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