Solicitação de exame técnico
#4.1
06/27/1989
RPI 975
Application data
Number
PI8801949Type
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: 06/27/1989. We update with every new RPI gazette, published weekly.
Applicants
E.I Du Pont de Nemours and Company
US
Imperial Chemical Industries Plc.
GB
Inventors
R. M. (pessoa física)
GB
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
06/27/1989
RPI 975
#3.1
11/22/1988
RPI 944
#2.1
09/13/1988
RPI 934
#21.1
Patente extinta em 22/04/2008
08/26/2008
RPI 1964
#25.1
Transferido de: Imperial Chemical Industries PLC.
06/15/1999
RPI 1484
#16.1
09/30/1997
RPI 1400
#13.1
05/13/1997
RPI 1380
#15.11
02/12/1997
RPI 1367
#9.1
02/12/1997
RPI 1367
#6.1
03/26/1996
RPI 1321
#6.1
02/21/1995
RPI 1264
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.