20.7
09/20/1983
RPI 674
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: 09/20/1983. We update with every new RPI gazette, published weekly.
Applicants
HITACHI LINE IND ELETRICA SA
Inventors
O. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/20/1983
RPI 674
09/13/1983
RPI 673
#16.1
07/27/1982
RPI 614
#13.1
10/06/1981
RPI 572
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
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