Solicitação de exame técnico
#4.1
09/06/1988
RPI 933
Application data
Number
PI8504545Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 09/06/1988. We update with every new RPI gazette, published weekly.
Applicants
DU PONT [US]
Inventors
A. T. (pessoa física)
BE
J. H. (pessoa física)
BE
IPC Classification
Priority claims
US
652.859 · 09/21/1984
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