20.4
02/21/1989
RPI 957
The letters patent expired on 09/19/1995: 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: 02/21/1989. We update with every new RPI gazette, published weekly.
Applicants
De Nora Permelec S.P.A
IT
Inventors
D. O. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
02/21/1989
RPI 957
#16.1
06/25/1985
RPI 766
#13.1
04/09/1985
RPI 755
#9.1
12/11/1984
RPI 738
#15.11
08/07/1984
RPI 720
#6.1
03/07/1984
RPI 698
#21.1
09/19/1995
RPI 1294
From the same holder
Same category
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