Publicação do pedido de patente
#3.1
07/11/1989
RPI 977
Application data
Number
PI8706722Type
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: 07/11/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
F. C. (pessoa física)
BR
P. A. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
07/11/1989
RPI 977
#2.1
04/05/1988
RPI 911
#21.1
Patente extinta em 11/12/2002
07/29/2008
RPI 1960
#16.1
12/31/1996
RPI 1361
#13.1
06/18/1996
RPI 1333
#9.1
11/21/1995
RPI 1303
#6.1
04/26/1994
RPI 1221
#4.1
03/13/1990
RPI 1009
From the same holder
Same category
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