Notificação de entrada na fase nacional - PCT
#1.3
10/31/1989
RPI 993
Application data
Number
PI8707868Type
Filing
Publication
PCT
US1987002453 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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Marathon Oil Company
US
Inventors
L. I. (pessoa física)
US
R. S. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#1.3
10/31/1989
RPI 993
#21.1
Patente extinta em 28/09/2002
07/29/2008
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