Pedido de patente depositado
#2.1
04/11/1989
RPI 964
Application data
Number
PI8900855Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 04/11/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
A. C. (pessoa física)
BR
S. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
04/11/1989
RPI 964
#21.1
Patente extinta em 24/02/2004
12/15/2009
RPI 2032
#16.1
06/27/1995
RPI 1282
#13.1
03/14/1995
RPI 1267
#9.1
11/08/1994
RPI 1249
#6.1
05/31/1994
RPI 1226
#4.1
02/05/1991
RPI 1053
#3.1
10/02/1990
RPI 1035
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Same category
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