Solicitação de exame técnico
#4.1
08/08/1989
RPI 981
Application data
Number
PI8606368Type
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: 08/08/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
F. B. (pessoa física)
BR
J. A. (pessoa física)
BR
M. G. (pessoa física)
BR
M. R. (pessoa física)
BR
R. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
08/08/1989
RPI 981
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07/12/1988
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07/22/2008
RPI 1959
#16.1
08/25/1992
RPI 1134
#13.1
02/18/1992
RPI 1107
#9.1
10/15/1991
RPI 1089
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04/23/1991
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