Solicitação de exame técnico
#4.1
11/10/1987
RPI 890
Application data
Number
PI8600277Type
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: 11/10/1987. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
F. S. (pessoa física)
BR
J. M. (pessoa física)
BR
P. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
11/10/1987
RPI 890
#3.1
09/01/1987
RPI 880
#2.1
07/22/1986
RPI 822
#21.1
Patente extinta em 24/01/2001
07/22/2008
RPI 1959
#16.1
11/24/1992
RPI 1147
07/28/1992
RPI 1130
#13.1
01/14/1992
RPI 1102
#15.11
11/12/1991
RPI 1093
#9.1
09/10/1991
RPI 1084
#6.1
05/28/1991
RPI 1069
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