Concessão da patente
#16.1
10/26/1982
RPI 627
The letters patent expired on 07/27/1993: 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: 10/26/1982. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
B. P. (pessoa física)
S. R. (pessoa física)
W. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/26/1982
RPI 627
#13.1
06/22/1982
RPI 609
#9.1
03/02/1982
RPI 593
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 103/75; B01J 31/02; C07C 41/00; C07C 43/00; C07C 47/54; C07C 67/00; C07C 69/00; C07C 69/02; C07C 69/76; C07C 253/00; C07C 255/38; C07C 313/00; C07C 319/20; C07C 323/62; C07C 47/52; C07C 255/00; C07C 319/00; C07C 323/00.
03/27/2018
RPI 2464
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
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