Publicação do pedido de patente
#3.1
08/08/1989
RPI 981
Application data
Number
PI8805954Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 08/08/1989. We update with every new RPI gazette, published weekly.
Applicants
Kemira Oy
FI
Inventors
R. L. (pessoa física)
FI
V. L. (pessoa física)
FI
IPC Classification
Priority claims
FI
875045 · 11/16/1987
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
08/08/1989
RPI 981
#2.1
03/28/1989
RPI 962
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01J 35/04; B01D 53/36; F01N 3/10.
03/27/2018
RPI 2464
#21.1
Patente extinta em 14/11/2003
09/02/2008
RPI 1965
#16.1
04/30/1996
RPI 1326
#9.1
09/12/1995
RPI 1293
#4.1
09/11/1990
RPI 1032
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