Concessão da patente
#16.1
11/28/1989
RPI 997
Application data
Number
PI8404422Type
Filing
Publication
The patent was granted on 11/28/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
J. V. (pessoa física)
US
IPC Classification
Priority claims
US
529.621 · 09/06/1983
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