Solicitação de exame técnico
#4.1
12/08/1987
RPI 894
Application data
Number
PI8406586Type
Filing
Publication
The patent was granted on 07/27/1993 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: 12/08/1987. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
M. M. (pessoa física)
US
S. Z. (pessoa física)
US
W. P. (pessoa física)
US
IPC Classification
Priority claims
US
564.372 · 12/22/1983
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