Pedido de patente depositado
#2.1
02/28/1989
RPI 958
Application data
Number
PI8805326Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 02/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
G. G. (pessoa física)
BR
I. N. (pessoa física)
BR
J. O. (pessoa física)
BR
J. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
02/28/1989
RPI 958
#21.1
Patente extinta em 14/10/2003
09/02/2008
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02/02/1993
RPI 1157
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09/22/1992
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08/21/1990
RPI 1029
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05/29/1990
RPI 1020
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