Concessão da patente
#16.1
05/31/1983
RPI 658
The letters patent expired on 05/03/1994: 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: 05/31/1983. We update with every new RPI gazette, published weekly.
Applicants
PAULISTA CO SIDERURGICA
Inventors
C. P. (pessoa física)
G. F. (pessoa física)
T. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/31/1983
RPI 658
#13.1
12/28/1982
RPI 636
#9.1
08/10/1982
RPI 616
#4.1
02/02/1982
RPI 589
#21.1
05/03/1994
RPI 1222
Same category
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