Publicação do pedido de patente
#3.1
02/17/1988
RPI 904
Application data
Number
PI8702266Type
Filing
Publication
The letters patent expired on 12/05/2012: 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: 02/17/1988. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. K. (pessoa física)
NL
G. B. (pessoa física)
NL
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
02/17/1988
RPI 904
#2.1
07/28/1987
RPI 875
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01J 23/50; A01N 301/10.
03/27/2018
RPI 2464
#21.1
Patente extinta em 27/07/2009
12/05/2012
RPI 2187
#16.1
07/27/1999
RPI 1490
#9.1
02/02/1999
RPI 1465
#6.1
09/29/1998
RPI 1449
#5.1
10/23/1990
RPI 1038
#4.1
06/19/1990
RPI 1023
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.