Pedido de patente depositado
#2.1
02/08/1989
RPI 955
Application data
Number
PI8804981Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 02/08/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
J. M. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
02/08/1989
RPI 955
#21.1
Patente extinta em 27/09/2003
09/02/2008
RPI 1965
#16.1
07/30/1996
RPI 1339
#13.1
01/02/1996
RPI 1309
#9.1
08/08/1995
RPI 1288
#6.1
02/07/1995
RPI 1262
#4.1
09/18/1990
RPI 1033
#3.1
05/15/1990
RPI 1018
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.