20.4
08/12/1986
RPI 825
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: 08/12/1986. We update with every new RPI gazette, published weekly.
Applicants
Fábrica de Aço Paulista S.A
SP, BR
Inventors
N. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/12/1986
RPI 825
08/12/1986
RPI 825
#20.1
07/29/1986
RPI 823
#16.1
08/31/1982
RPI 619
#13.1
03/23/1982
RPI 596
#9.1
11/17/1981
RPI 578
#21.1
09/21/1993
RPI 1190
From the same holder
Same category
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