Publicação do pedido de patente
#3.1
02/08/1989
RPI 955
Application data
Number
PI8703856Type
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: 02/08/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
J. C. (pessoa física)
BR
L. C. (pessoa física)
BR
R. C. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
02/08/1989
RPI 955
#2.1
10/13/1987
RPI 886
#21.1
Patente extinta em 24/07/2002
07/29/2008
RPI 1960
#16.1
04/26/1994
RPI 1221
#13.1
11/23/1993
RPI 1199
#9.1
07/06/1993
RPI 1179
#4.1
08/21/1990
RPI 1029
From the same holder
Same category
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