Concessão da patente
#16.1
10/27/1987
RPI 888
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: 10/27/1987. 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
10/27/1987
RPI 888
#13.1
06/09/1987
RPI 868
#9.1
01/13/1987
RPI 847
#6.1
01/21/1986
RPI 796
#6.1
05/02/1984
RPI 706
05/02/1984
RPI 706
#7.1
02/21/1984
RPI 696
#4.1
08/23/1983
RPI 670
#21.1
04/25/1995
RPI 1273
From the same holder
Same category
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