Concessão da patente
#16.1
05/31/1988
RPI 919
Application data
Number
PI8203809Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants
DU PONT [US]
Inventors
D. S. (pessoa física)
US
O. W. (pessoa física)
US
W. F. (pessoa física)
US
IPC Classification
Priority claims
US
279.025 · 06/30/1981
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