Concessão da patente
#16.1
08/30/1988
RPI 932
The letters patent expired on 09/27/1994: 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: 08/30/1988. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
L. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/30/1988
RPI 932
#13.1
06/07/1988
RPI 920
#9.1
02/09/1988
RPI 903
#6.1
07/28/1987
RPI 875
#6.1
09/30/1986
RPI 832
#4.1
11/12/1985
RPI 786
#3.1
08/06/1985
RPI 772
#2.1
03/20/1984
RPI 700
#21.1
09/27/1994
RPI 1243
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Same category
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