Carta-patente expirada
#21.1
Patente extinta em 13/10/2009
12/26/2012
RPI 2190
Application data
Number
PI8905208Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
G. S. (pessoa física)
US
IPC Classification
Priority claims
US
257.548 · 10/14/1988
US
402,295 · 09/05/1989
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Patente extinta em 13/10/2009
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