Concessão da patente
#16.1
02/28/1989
RPI 958
The letters patent expired on 12/07/1993: 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: 02/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS
MG, BR
Inventors
C. (pessoa física)
C. D. (pessoa física)
D. D. (pessoa física)
H. (pessoa física)
M. S. (pessoa física)
P. M. (pessoa física)
R. H. (pessoa física)
S. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/28/1989
RPI 958
#13.1
08/09/1988
RPI 929
#9.1
04/26/1988
RPI 914
#15.6
02/09/1988
RPI 903
#15.3
10/20/1987
RPI 887
#6.1
08/26/1986
RPI 827
#6.1
02/12/1986
RPI 799
#4.1
02/05/1985
RPI 746
#3.1
09/20/1983
RPI 674
#2.1
02/16/1982
RPI 591
#21.1
12/07/1993
RPI 1201
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