Concessão da patente
#16.1
10/29/1985
RPI 784
Application data
Number
PI8101487Type
Filing
Publication
The letters patent expired on 09/24/1996: 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: 10/29/1985. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
B. J. (pessoa física)
B. V. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/29/1985
RPI 784
#13.1
08/27/1985
RPI 775
#9.1
05/07/1985
RPI 759
#4.1
02/22/1983
RPI 644
#3.1
10/26/1982
RPI 627
#21.1
09/24/1996
RPI 1347
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Same category
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