Concessão da patente
#16.1
07/29/1986
RPI 823
Application data
Number
PI8300425Type
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: 07/29/1986. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
D. S. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/29/1986
RPI 823
#13.1
05/06/1986
RPI 811
#9.1
01/07/1986
RPI 794
#6.1
05/28/1985
RPI 762
#4.1
12/04/1984
RPI 737
#3.1
09/04/1984
RPI 724
#2.1
03/15/1983
RPI 647
#21.1
Patente extinta em 28/01/98
07/01/2008
RPI 1956
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Same category
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