Solicitação de exame técnico
#4.1
09/05/1989
RPI 985
Application data
Number
PI8700947Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 09/05/1989. We update with every new RPI gazette, published weekly.
Applicants
Marathon Oil Company
US
Inventors
R. S. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/05/1989
RPI 985
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01/05/1988
RPI 898
#2.1
06/16/1987
RPI 869
#21.1
Patente extinta em 26/02/2002
07/29/2008
RPI 1960
#16.1
07/30/1991
RPI 1078
#13.1
02/05/1991
RPI 1053
#9.1
10/23/1990
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