Publicação do pedido de patente
#3.1
05/16/1989
RPI 969
Application data
Number
PI8705624Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 05/16/1989. We update with every new RPI gazette, published weekly.
Applicants
Companhia Siderúrgica Nacional - CSN
RJ, BR
Companhia Siderúrgica Nacional (grupo Siderbrás)
RJ, BR
Inventors
P. J. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
05/16/1989
RPI 969
#2.1
11/22/1988
RPI 944
#21.1
Patente extinta em 21/10/2002
07/29/2008
RPI 1960
#16.1
05/30/1995
RPI 1278
#13.1
12/20/1994
RPI 1255
#9.1
08/23/1994
RPI 1238
#4.1
09/25/1990
RPI 1034
02/13/1990
RPI 1006
From the same holder
Same category
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