Carta-patente expirada
#21.1
Patente extinta em 10/08/2003
09/02/2008
RPI 1965
Application data
Number
PI8807689Type
Filing
Publication
PCT
US1988002763 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: 09/02/2008. We update with every new RPI gazette, published weekly.
Applicants
Donaldson Company, Inc
US
Inventors
B. H. (pessoa física)
D. F. (pessoa física)
E. S. (pessoa física)
W. W. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 10/08/2003
09/02/2008
RPI 1965
#16.1
08/31/1993
RPI 1187
#13.1
06/29/1993
RPI 1178
#9.1
03/09/1993
RPI 1162
#4.1
07/16/1991
RPI 1076
#1.3
06/26/1990
RPI 1024
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