Pedido de patente depositado
#2.1
01/03/1989
RPI 950
Application data
Number
PI8803881Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 01/03/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
G. M. (pessoa física)
BR
M. L. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
01/03/1989
RPI 950
#21.1
Patente extinta em 05/08/2003
09/02/2008
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#16.1
11/28/1995
RPI 1304
#13.1
09/05/1995
RPI 1292
#9.1
03/28/1995
RPI 1269
#4.1
10/16/1990
RPI 1037
#3.1
03/13/1990
RPI 1009
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