Pedido de patente depositado
#2.1
10/24/1989
RPI 992
Application data
Number
PI8903219Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 10/24/1989. We update with every new RPI gazette, published weekly.
Applicants
E. F. (pessoa física)
FR
Institut Français du Petrole
FR
Institut Français Du Petrole
FR
Inventors
D. E. (pessoa física)
FR
P. M. (pessoa física)
FR
R. T. (pessoa física)
FR
X. M. (pessoa física)
FR
IPC Classification
Priority claims
FR
88/08899 · 06/29/1988
FR
89/05859 · 04/28/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
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10/24/1989
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Patente extinta em 29/06/2004
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