Concessão da patente
#16.1
02/04/1986
RPI 798
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: 02/04/1986. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappig B.V.
NL
Inventors
G. T. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
02/04/1986
RPI 798
#13.1
11/12/1985
RPI 786
#9.1
07/09/1985
RPI 768
#6.1
09/18/1984
RPI 726
#6.1
03/07/1984
RPI 698
#4.1
08/16/1983
RPI 669
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 127/19; A01N 47/30.
03/27/2018
RPI 2464
#21.1
03/19/1996
RPI 1320
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.