20.4
08/05/1986
RPI 824
The letters patent expired on 05/16/1995: 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
D. V. (pessoa física)
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
09/25/1984
RPI 727
#13.1
07/17/1984
RPI 717
#9.1
03/20/1984
RPI 700
01/24/1984
RPI 692
#6.1
07/19/1983
RPI 665
#4.1
09/21/1982
RPI 622
#21.1
05/16/1995
RPI 1276
From the same holder
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