Concessão da patente
#16.1
07/31/1984
RPI 719
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: 07/31/1984. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
J. S. (pessoa física)
GB
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/31/1984
RPI 719
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Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 121/407; C07C 120/00; C07C 253/00.
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