Concessão da patente
#16.1
12/29/1987
RPI 897
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: 12/29/1987. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
C. D. (pessoa física)
C. C. (pessoa física)
F. P. (pessoa física)
K. (pessoa física)
N. A. (pessoa física)
P. M. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/29/1987
RPI 897
#13.1
09/29/1987
RPI 884
#9.1
06/09/1987
RPI 868
#6.1
09/30/1986
RPI 832
#4.1
10/01/1985
RPI 780
#3.1
07/09/1985
RPI 768
#2.1
02/07/1984
RPI 694
#21.1
09/27/1994
RPI 1243
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