6.2
05/30/1989
RPI 971
Application data
Number
PI8504540Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Sherritt Gordon Mines Limited
CA
Inventors
D. W. (pessoa física)
CA
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
#4.1
08/16/1988
RPI 930
#3.1
07/15/1986
RPI 821
#2.1
11/19/1985
RPI 787
#21.1
Patente extinta em 18/09/2000
07/15/2008
RPI 1958
#16.1
06/30/1992
RPI 1126
#13.1
01/21/1992
RPI 1103
#9.1
09/17/1991
RPI 1085
#6.1
02/13/1991
RPI 1054
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