Concessão da patente
#16.1
09/27/1983
RPI 675
The letters patent expired on 04/25/1995: 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: 09/27/1983. We update with every new RPI gazette, published weekly.
Applicants
SONY CORP
Inventors
H. S. (pessoa física)
Y. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/27/1983
RPI 675
#13.1
06/14/1983
RPI 660
#9.1
02/16/1983
RPI 643
#4.1
06/29/1982
RPI 610
#21.1
04/25/1995
RPI 1273
From the same holder
Same category
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