Pedido de patente depositado
#2.1
03/21/1989
RPI 961
Application data
Number
PI8900399Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 03/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
L. G. (pessoa física)
T. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
03/21/1989
RPI 961
#21.1
Patente extinta em 31/01/2004
12/15/2009
RPI 2032
#22.1
08/08/1995
RPI 1288
#16.1
10/26/1993
RPI 1195
#13.1
08/03/1993
RPI 1183
#9.1
04/13/1993
RPI 1167
#4.1
11/06/1990
RPI 1040
#3.1
08/14/1990
RPI 1028
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.