Concessão da patente
#16.1
03/29/1983
RPI 649
The letters patent expired on 05/02/1995: 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: 03/29/1983. We update with every new RPI gazette, published weekly.
Applicants
DU PONT
Inventors
K. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/29/1983
RPI 649
#13.1
12/14/1982
RPI 634
#9.1
07/27/1982
RPI 614
#4.1
12/22/1981
RPI 583
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: H01R 4/52; H01R 23/02.
03/27/2018
RPI 2464
#21.1
05/02/1995
RPI 1274
From the same holder
Same category
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