Deferimento
#9.1
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
D. C. (pessoa física)
BR
J. T. (pessoa física)
BR
W. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#9.1
08/29/1989
RPI 984
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04/11/1989
RPI 964
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08/25/1987
RPI 879
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08/27/1985
RPI 775
#2.1
04/10/1984
RPI 703
#21.1
10/04/1994
RPI 1244
#16.1
04/24/1990
RPI 1015
#13.1
01/09/1990
RPI 1001
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