Concessão da patente
#16.1
06/26/1984
RPI 714
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: 06/26/1984. We update with every new RPI gazette, published weekly.
Applicants
NGK SPARK PLUG CO
Inventors
A. C. (pessoa física)
I. O. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/26/1984
RPI 714
#13.1
05/02/1984
RPI 706
#9.1
01/10/1984
RPI 690
#6.1
09/06/1983
RPI 672
#4.1
01/12/1982
RPI 586
#21.1
06/13/1995
RPI 1280
From the same holder
Same category
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