Exigência - art. 36 da LPI
#6.1
11/07/1989
RPI 994
The letters patent expired on 05/09/1995: 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: 11/07/1989. We update with every new RPI gazette, published weekly.
Applicants
Usinas Siderúrgicas de Minas Gerais - USIMINAS (Grupo Siderbrás)
MG, BR
Inventors
C. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#6.1
11/07/1989
RPI 994
#4.1
10/18/1988
RPI 939
#3.1
09/30/1986
RPI 832
#2.1
05/21/1985
RPI 761
#21.1
05/09/1995
RPI 1275
#15.11
03/19/1991
RPI 1059
#16.1
10/30/1990
RPI 1039
#13.1
07/31/1990
RPI 1026
#9.1
03/20/1990
RPI 1010
From the same holder
Same category
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