Pedido de patente depositado
#2.1
07/04/1989
RPI 976
Application data
Number
PI8902233Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
J. K. (pessoa física)
US
R. S. (pessoa física)
US
IPC Classification
Priority claims
US
193.630 · 05/13/1988
US
315.291 · 02/24/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
07/04/1989
RPI 976
#21.1
Patente extinta em 12/05/2004
12/22/2009
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12/26/1995
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10/31/1995
RPI 1300
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06/20/1995
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09/22/1992
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08/21/1990
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