Concessão da patente
#16.1
09/27/1988
RPI 936
Application data
Number
PI8202707Type
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: 09/27/1988. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
M. Z. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/27/1988
RPI 936
#13.1
06/21/1988
RPI 922
#15.11
05/10/1988
RPI 916
#9.1
03/01/1988
RPI 906
#6.1
08/18/1987
RPI 878
#6.1
09/03/1985
RPI 776
05/29/1984
RPI 710
#4.1
03/07/1984
RPI 698
#3.1
12/20/1983
RPI 687
#2.1
06/22/1982
RPI 609
#21.1
Patente extinta em 11/05/97
07/01/2008
RPI 1956
#15.11
10/01/1991
RPI 1087
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.