Publicação do pedido de patente
#3.1
10/24/1989
RPI 992
Application data
Number
PI8801441Type
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: 10/24/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
P. A. (pessoa física)
BA, BR
Inventors
D. Á. (pessoa física)
BR
J. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
10/24/1989
RPI 992
#2.1
07/26/1988
RPI 927
#21.1
Patente extinta em 29/03/2003
09/02/2008
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#16.1
09/24/1996
RPI 1347
#13.1
03/12/1996
RPI 1319
#9.1
10/03/1995
RPI 1296
#6.1
01/17/1995
RPI 1259
#4.1
01/02/1991
RPI 1048
#4.2
08/07/1990
RPI 1027
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