Solicitação de exame técnico
#4.1
08/30/1988
RPI 932
Application data
Number
PI8406726Type
Filing
Publication
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: 08/30/1988. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
D. S. (pessoa física)
US
O. W. (pessoa física)
US
W. F. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
08/30/1988
RPI 932
#3.1
07/08/1986
RPI 820
#2.1
03/19/1985
RPI 752
#21.1
Patente extinta em 25/08/2008
08/26/2008
RPI 1964
#16.1
08/25/1998
RPI 1444
#9.1
Deferido de acordo com a lei 9279 de 14/05/96
03/24/1998
RPI 1422
#6.1
02/22/1994
RPI 1212
#6.1
12/17/1991
RPI 1098
#6.1
05/07/1991
RPI 1066
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Same category
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