Pedido de patente depositado
#2.1
02/28/1989
RPI 958
Application data
Number
PI8900180Type
Filing
Publication
The letters patent expired on 12/18/2012: 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: 02/28/1989. We update with every new RPI gazette, published weekly.
Applicants
P. E. (pessoa física)
FR
P. R. (pessoa física)
FR
Inventors
D. D. (pessoa física)
FR
J. G. (pessoa física)
FR
M. L. (pessoa física)
FR
S. H. (pessoa física)
FR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
02/28/1989
RPI 958
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C01B 31/36; B01J 27/224; B01D 53/92; C07C 2/84.
03/27/2018
RPI 2464
#21.1
Patente extinta em 16/01/2009
12/18/2012
RPI 2189
#16.1
11/24/1998
RPI 1455
#15.11
Alterada de: C04B 35/56.
06/16/1998
RPI 1434
#9.1
06/16/1998
RPI 1434
#6.1
10/28/1997
RPI 1404
#6.1
02/04/1997
RPI 1366
10/31/1995
RPI 1300
#4.1
09/03/1991
RPI 1083
#3.1
08/14/1990
RPI 1028
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Same category
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