20.7
03/17/1987
RPI 856
The letters patent expired on 07/27/1993: 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: 03/17/1987. We update with every new RPI gazette, published weekly.
Applicants
ASEA AB
Inventors
D. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
03/17/1987
RPI 856
#22.1
08/19/1986
RPI 826
#22.1
08/12/1986
RPI 825
#16.1
08/31/1982
RPI 619
#13.1
04/13/1982
RPI 599
#9.1
12/01/1981
RPI 580
#21.1
07/27/1993
RPI 1182
From the same holder
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