Pedido de patente depositado
#2.1
04/25/1989
RPI 966
Application data
Number
PI8806877Type
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: 04/25/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Universidade Estadual de Campinas - Unicamp
SP, BR
Inventors
A. H. (pessoa física)
BR
C. A. (pessoa física)
BR
C. P. (pessoa física)
BR
F. D. (pessoa física)
BR
O. F. (pessoa física)
BR
V. V. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
04/25/1989
RPI 966
#21.1
Patente extinta em 26/12/2003
09/02/2008
RPI 1965
#16.1
09/24/1996
RPI 1347
#13.1
03/12/1996
RPI 1319
#9.1
10/03/1995
RPI 1296
#4.1
01/08/1991
RPI 1049
#3.1
08/07/1990
RPI 1027
From the same holder
Same category
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