Carta-patente expirada
#21.1
Patente extinta em 05/07/2010
01/22/2013
RPI 2194
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Official data from INPI
COMPOSIÇÃO DE RESINA E PROCESSO PARA A PREPARAÇÃO DO COPOLÍMERO DE POLICARBONATO-POLIDIMETILSILOXANO
Arquivada/ExtintaInvention PatentPCT · JP1990000864
Application data
Number
PI9006848Type
Invention Patent
Filing
07/05/1990
Publication
08/27/1991
PCT
JP1990000864 Progress at the INPI
- Filing07/05/90
- Publication08/27/91
- Examination11/12/91
- Allowance10/26/99
- Grant05/16/00
- Expired01/22/13
The letters patent expired on 01/22/2013: 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: 01/22/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Idemitsu Petrochemical Co. Ltd
JP
Inventors
M. O. (pessoa física)
JP
T. K. (pessoa física)
JP
Technical data
IPC Classification
Priority claims
JP
174046/1989 · 07/07/1989
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
05/16/2000
RPI 1532
Deferimento
#9.1
10/26/1999
RPI 1503
Exigência - art. 36 da LPI
#6.1
03/30/1999
RPI 1473
Exigência - art. 36 da LPI
#6.1
08/18/1998
RPI 1443
Solicitação de exame técnico
#4.1
11/12/1991
RPI 1093
Notificação de entrada na fase nacional - PCT
#1.3
08/27/1991
RPI 1082
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