Carta-patente expirada
#21.1
Patente extinta em 17/05/2009
12/26/2012
RPI 2190
Application data
Number
PI8907515Type
Filing
Publication
PCT
US1989002072 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
E. M. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 17/05/2009
12/26/2012
RPI 2190
#16.1
11/24/1998
RPI 1455
#9.1
06/09/1998
RPI 1433
#4.1
02/11/1992
RPI 1106
#1.3
05/28/1991
RPI 1069
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.