Publicação do pedido de patente
#3.1
09/19/1989
RPI 987
Application data
Number
PI8800733Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 09/19/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Inventors
J. C. (pessoa física)
BR
J. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
09/19/1989
RPI 987
#2.1
05/10/1988
RPI 916
#21.1
Patente extinta em 23/02/2003
09/02/2008
RPI 1965
#16.1
11/24/1992
RPI 1147
#13.1
06/30/1992
RPI 1126
#9.1
02/11/1992
RPI 1106
#4.1
04/16/1991
RPI 1063
From the same holder
Same category
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