Concessão da patente
#16.1
04/29/1986
RPI 810
Application data
Number
PI8204693Type
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: 04/29/1986. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
C. G. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/29/1986
RPI 810
#13.1
12/24/1985
RPI 792
#9.1
08/20/1985
RPI 774
#6.1
04/16/1985
RPI 756
#6.1
11/27/1984
RPI 736
#4.1
05/22/1984
RPI 709
#3.1
03/20/1984
RPI 700
#2.1
09/21/1982
RPI 622
#21.1
Patente extinta em 10/08/97
07/01/2008
RPI 1956
From the same holder
Same category
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