Publicação do pedido de patente
#3.1
07/04/1989
RPI 976
Application data
Number
PI8706665Type
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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - Usiminas
MG, BR
Inventors
W. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
07/04/1989
RPI 976
#2.1
03/29/1988
RPI 910
#21.1
Patente extinta em 09/12/2002
07/29/2008
RPI 1960
#16.1
11/24/1992
RPI 1147
#13.1
05/19/1992
RPI 1120
#9.1
12/24/1991
RPI 1099
#4.1
02/13/1991
RPI 1054
From the same holder
Same category
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