Solicitação de exame técnico
#4.1
06/23/1987
RPI 870
Application data
Number
PI8402706Type
Filing
Publication
The patent was granted on 02/13/1991 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: 06/23/1987. We update with every new RPI gazette, published weekly.
Applicants
DU PONT [US]
Inventors
R. E. (pessoa física)
US
IPC Classification
Priority claims
US
502.317 · 06/08/1983
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