Publicação do pedido de patente
#3.1
03/21/1989
RPI 961
Application data
Number
PI8704857Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 03/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
H. F. (pessoa física)
BR
J. F. (pessoa física)
BR
P. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
03/21/1989
RPI 961
#2.1
07/12/1988
RPI 925
#2.1
12/01/1987
RPI 893
#21.1
Patente extinta em 22/09/2002
07/29/2008
RPI 1960
#16.1
10/31/1995
RPI 1300
#13.1
08/08/1995
RPI 1288
#9.1
03/07/1995
RPI 1266
#4.1
11/20/1990
RPI 1042
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.