Concessão da patente
#16.1
07/28/1987
RPI 875
The letters patent expired on 07/01/2008: 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: 07/28/1987. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
A. I. (pessoa física)
C. T. (pessoa física)
D. M. (pessoa física)
F. J. (pessoa física)
M. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/28/1987
RPI 875
#13.1
11/04/1986
RPI 837
#9.1
07/08/1986
RPI 820
#7.1
11/26/1985
RPI 788
#4.1
03/19/1985
RPI 752
#2.1
07/17/1984
RPI 717
#21.1
Patente extinta em 20/05/98
07/01/2008
RPI 1956
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.