Carta-patente expirada
#21.1
Patente extinta em 17/08/2004
12/22/2009
RPI 2033
Application data
Number
PI8904139Type
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: 12/22/2009. We update with every new RPI gazette, published weekly.
Applicants
E.I. Du Pont de Nemours and Company
US
Inventors
J. G. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 17/08/2004
12/22/2009
RPI 2033
#16.1
03/26/1996
RPI 1321
#9.1
08/15/1995
RPI 1289
#6.1
08/16/1994
RPI 1237
#4.1
06/01/1993
RPI 1174
#3.1
02/19/1991
RPI 1055
#2.1
01/23/1990
RPI 1003
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.