Concessão da patente
#16.1
06/02/1987
RPI 867
Application data
Number
PI8303667Type
Filing
Publication
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: 06/02/1987. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileira S/A - Petrobrás
RJ, BR
Inventors
C. F. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/02/1987
RPI 867
#13.1
12/23/1986
RPI 844
#9.1
09/02/1986
RPI 828
#6.1
02/18/1986
RPI 800
#4.1
05/07/1985
RPI 759
#3.1
02/20/1985
RPI 748
#2.1
08/23/1983
RPI 670
#21.1
Patente extinta em 08/07/98
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.