Pedido de certificado de adição de invenção
#5.1
02/17/1988
RPI 904
Application data
Number
PI8605791Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 02/17/1988. We update with every new RPI gazette, published weekly.
Applicants
Marathon Oil Company
US
Inventors
P. A. (pessoa física)
US
R. S. (pessoa física)
US
IPC Classification
Priority claims
US
807.416 · 12/10/1985
US
822.709 · 01/27/1986
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