16.3
07/24/1984
RPI 718
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: 07/24/1984. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. R. (pessoa física)
NL
R. S. (pessoa física)
NL
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/24/1984
RPI 718
#16.1
04/24/1984
RPI 705
#13.1
02/28/1984
RPI 697
#9.1
11/08/1983
RPI 681
#6.1
04/12/1983
RPI 651
11/10/1981
RPI 577
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 121/75; C07C 120/00; C07C 253/00; C07C 255/38; C07C 313/00; C07C 319/20; C07C 323/62; C07C 255/00; C07C 319/00; C07C 323/00.
03/27/2018
RPI 2464
#21.1
05/03/1994
RPI 1222
From the same holder
Same category
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