Concessão da patente
#16.1
03/27/1984
RPI 701
The letters patent expired on 05/03/1994: 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: 03/27/1984. We update with every new RPI gazette, published weekly.
Applicants
PETROLEO BRASILEIRO SA
Inventors
A. O. (pessoa física)
D. E. (pessoa física)
L. A. (pessoa física)
S. L. (pessoa física)
T. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/27/1984
RPI 701
#13.1
12/13/1983
RPI 686
#9.1
08/23/1983
RPI 670
03/22/1983
RPI 648
#6.1
08/17/1982
RPI 617
#4.1
02/24/1982
RPI 592
#21.1
05/03/1994
RPI 1222
From the same holder
Same category
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