6.2
06/13/1989
RPI 973
Application data
Number
PI8504974Type
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: 06/13/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
J. G. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
06/13/1989
RPI 973
#4.1
07/05/1988
RPI 924
#3.1
07/22/1986
RPI 822
#2.1
12/10/1985
RPI 790
#21.1
Patente extinta em 08/10/2000
07/15/2008
RPI 1958
#16.1
07/30/1991
RPI 1078
#13.1
04/09/1991
RPI 1062
#9.1
12/26/1990
RPI 1047
#7.1
07/24/1990
RPI 1025
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Same category
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