Concessão da patente
#16.1
04/07/1987
RPI 859
The letters patent expired on 09/21/1993: 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: 04/07/1987. We update with every new RPI gazette, published weekly.
Applicants
KAISER STEEL CORP
Inventors
O. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/07/1987
RPI 859
03/18/1986
RPI 804
05/08/1984
RPI 707
02/14/1984
RPI 695
01/17/1984
RPI 691
#12.2
01/11/1983
RPI 638
#9.2
07/27/1982
RPI 614
#7.1
12/08/1981
RPI 581
#21.1
09/21/1993
RPI 1190
From the same holder
Same category
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