Pedido de patente depositado
#2.1
10/24/1989
RPI 992
Application data
Number
PI8903221Type
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
Inventors
D. E. (pessoa física)
FR
J. D. (pessoa física)
FR
P. M. (pessoa física)
FR
X. M. (pessoa física)
FR
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
10/24/1989
RPI 992
#21.1
Patente extinta em 29/06/2004
12/22/2009
RPI 2033
#16.1
02/25/1997
RPI 1369
#13.1
12/10/1996
RPI 1358
#9.1
03/19/1996
RPI 1320
#6.1
02/07/1995
RPI 1262
#4.1
03/31/1992
RPI 1113
#3.1
02/13/1990
RPI 1006
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