Concessão da patente
#16.1
08/25/1987
RPI 879
The letters patent expired on 03/19/1996: 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: 08/25/1987. We update with every new RPI gazette, published weekly.
Applicants
Saipem S.p.A..
IT
Inventors
R. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/25/1987
RPI 879
#13.1
05/05/1987
RPI 863
#9.1
12/16/1986
RPI 843
#15.11
04/23/1985
RPI 757
#6.1
02/26/1985
RPI 749
#4.1
09/13/1983
RPI 673
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B23K 33/00; B23K 9/02; B23K 31/06.
03/27/2018
RPI 2464
#21.1
03/19/1996
RPI 1320
Same category
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