Exigência - art. 36 da LPI
#6.1
08/29/1989
RPI 984
Application data
Number
PI8501565Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
D. D. (pessoa física)
BR
E. W. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#6.1
08/29/1989
RPI 984
#4.1
12/30/1986
RPI 845
#3.1
11/11/1986
RPI 838
#2.1
11/19/1985
RPI 787
#21.1
Patente extinta em 03/04/2000
07/15/2008
RPI 1958
#22.1
11/28/1995
RPI 1304
#16.1
12/26/1990
RPI 1047
#13.1
10/09/1990
RPI 1036
#9.1
06/26/1990
RPI 1024
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.