Concessão da patente
#16.1
12/30/1986
RPI 845
The letters patent expired on 04/25/1995: 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: 12/30/1986. We update with every new RPI gazette, published weekly.
Applicants
VALE DO RIO DOCE CO
Inventors
D. C. (pessoa física)
D. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/30/1986
RPI 845
#13.1
08/12/1986
RPI 825
#9.1
04/08/1986
RPI 807
#6.1
06/11/1985
RPI 764
#6.1
09/11/1984
RPI 725
#7.1
05/02/1984
RPI 706
#6.1
01/31/1984
RPI 693
#4.1
08/30/1983
RPI 671
#21.1
04/25/1995
RPI 1273
From the same holder
Same category
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