Concessão da patente
#16.1
08/29/1989
RPI 984
Application data
Number
PI8207391Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
S. S. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/29/1989
RPI 984
#13.1
05/16/1989
RPI 969
#9.1
01/03/1989
RPI 950
#6.1
06/21/1988
RPI 922
#4.1
10/15/1985
RPI 782
#3.1
10/18/1983
RPI 678
#2.1
02/08/1983
RPI 642
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 131/02; A01N 33/24.
03/27/2018
RPI 2464
#21.1
Patente extinta em 20/12/97
07/01/2008
RPI 1956
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.