Solicitação de exame técnico
#4.1
03/21/1989
RPI 961
Application data
Number
PI8602326Type
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: 03/21/1989. We update with every new RPI gazette, published weekly.
Applicants
C. S. (pessoa física)
FR
E. F. (pessoa física)
FR
Institut Français du Petrole
FR
Inventors
F. F. (pessoa física)
FR
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
03/21/1989
RPI 961
#3.1
01/21/1987
RPI 848
#2.1
11/18/1986
RPI 839
#21.1
Patente extinta em 22/05/2001
07/22/2008
RPI 1959
#16.1
08/31/1993
RPI 1187
#13.1
06/15/1993
RPI 1176
#9.1
03/02/1993
RPI 1161
#6.1
04/21/1992
RPI 1116
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.