Solicitação de exame técnico
#4.1
10/24/1989
RPI 992
Application data
Number
PI8703935Type
Filing
Publication
The letters patent expired on 07/29/2008: 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 Brasileira S/A - Petrobrás
RJ, BR
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
P. A. (pessoa física)
BA, BR
P. A. (pessoa física)
BA, BR
Inventors
D. A. (pessoa física)
BR
J. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/24/1989
RPI 992
#3.1
02/14/1989
RPI 956
#2.1
11/17/1987
RPI 891
#21.1
Patente extinta em 31/07/2002
07/29/2008
RPI 1960
#16.1
10/31/1995
RPI 1300
#13.1
08/29/1995
RPI 1291
#9.1
03/14/1995
RPI 1267
#6.1
02/22/1994
RPI 1212
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Same category
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