Concessão da patente
#16.1
08/29/1989
RPI 984
The letters patent expired on 10/04/1994: 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: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS
MG, BR
Inventors
C. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/29/1989
RPI 984
#13.1
05/30/1989
RPI 971
#9.1
01/24/1989
RPI 953
#4.1
08/25/1987
RPI 879
#3.1
10/22/1985
RPI 783
#2.1
05/15/1984
RPI 708
#21.1
10/04/1994
RPI 1244
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