Concessão da patente
#16.1
04/30/1985
RPI 758
The letters patent expired on 09/24/1996: 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: 04/30/1985. We update with every new RPI gazette, published weekly.
Applicants
Du Pont de Nemours GmbH
DE
Inventors
D. B. (pessoa física)
DE
K. B. (pessoa física)
DE
IPC Classification
Priority claims
CH
1859/80-9 · 03/10/1980
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/30/1985
RPI 758
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Procedimento automático de reclassificação. As classificações IPC anteriores eram: B29B 1/02; C08J 5/08.
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