6.2
06/30/1987
RPI 871
Application data
Number
PI8306936Type
Filing
Publication
The patent was granted on 07/30/1991 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: 06/30/1987. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
R. D. (pessoa física)
US
IPC Classification
Priority claims
US
450.221 · 12/16/1982
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