Concessão da patente
#16.1
11/30/1982
RPI 632
The letters patent expired on 07/13/1993: 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: 11/30/1982. We update with every new RPI gazette, published weekly.
Applicants
NIPPON STEEL CORP
Inventors
H. S. (pessoa física)
K. A. (pessoa física)
O. Y. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/30/1982
RPI 632
#13.1
09/08/1982
RPI 620
#9.1
05/18/1982
RPI 604
#6.1
10/13/1981
RPI 573
#21.1
07/13/1993
RPI 1180
From the same holder
Same category
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