Concessão da patente
#16.1
11/28/1989
RPI 997
Application data
Number
PI8305214Type
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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
I. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/28/1989
RPI 997
#13.1
08/15/1989
RPI 982
#9.1
04/18/1989
RPI 965
#4.1
08/06/1985
RPI 772
#3.1
04/30/1985
RPI 758
#2.1
11/29/1983
RPI 684
#21.1
Patente extinta em 23/09/98
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.