20.4
08/05/1986
RPI 824
The letters patent expired on 06/13/1995: 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: 08/05/1986. We update with every new RPI gazette, published weekly.
Applicants
Delle - Alsthom
Inventors
N. D. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
08/05/1986
RPI 824
#20.1
07/29/1986
RPI 823
#16.1
01/31/1984
RPI 693
#13.1
11/16/1983
RPI 682
#9.1
07/19/1983
RPI 665
#4.1
09/21/1982
RPI 622
#21.1
06/13/1995
RPI 1280
From the same holder
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