200
05/10/1988
RPI 916
Application data
Number
PI8307400Type
Filing
Publication
PCT
US1983000835 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: 05/10/1988. We update with every new RPI gazette, published weekly.
Applicants
Donaldson Company, Inc
US
Inventors
N. [. (pessoa física)
P. [. (pessoa física)
W. [. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
05/10/1988
RPI 916
#17.1
09/22/1987
RPI 883
#16.1
09/30/1986
RPI 832
#13.1
08/12/1986
RPI 825
#9.1
04/08/1986
RPI 807
#6.1
07/09/1985
RPI 768
#4.1
01/15/1985
RPI 743
#1.3
07/17/1984
RPI 717
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 27/06; B01D 29/06; B01D 46/52; B31B 49/00.
03/27/2018
RPI 2464
#21.1
Patente extinta em 26/05/98
07/01/2008
RPI 1956
From the same holder
Same category
Patent monitoring
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