Carta-patente expirada
#21.1
Patente extinta em 05/08/2008
08/26/2008
RPI 1964
Application data
Number
PI8807645Type
Filing
Publication
PCT
US1988002596 The letters patent expired on 08/26/2008: 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: 08/26/2008. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
R. A. (pessoa física)
US
T. Y. (pessoa física)
JP
IPC Classification
Priority claims
US
082.697 · 08/07/1987
US
157.548 · 02/12/1988
US
194.549 · 05/16/1988
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 05/08/2008
08/26/2008
RPI 1964
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