Concessão da patente
#16.1
09/27/1988
RPI 936
Application data
Number
PI8204113Type
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
E. L. (pessoa física)
BR
J. F. (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
#9.1
03/01/1988
RPI 906
#6.1
11/19/1985
RPI 787
#4.1
05/29/1984
RPI 710
#3.1
02/21/1984
RPI 696
#2.1
07/26/1983
RPI 666
#21.1
Patente extinta em 15/07/97
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.