Carta-patente expirada
#21.1
Patente extinta em 24/11/2009
05/21/2013
RPI 2211
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Official data from INPI
PROCESSO PARA A PREPARAÇÃO DE COPOLÍMEROS LINEARES COM BLOCOS ALTERNADOS
Arquivada/ExtintaInvention Patent
Application data
Number
PI8906186Type
Invention Patent
Filing
11/24/1989
Publication
06/26/1990
Progress at the INPI
- Filing11/24/89
- Publication06/26/90
- Examination11/13/90
- Allowance03/26/96
- Grant08/26/97
- Expired05/21/13
The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Enichem Elastomeri S.p.A
IT
Inventors
A. Z. (pessoa física)
IT
E. A. (pessoa física)
IT
S. C. (pessoa física)
IT
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
08/26/1997
RPI 1395
Notificação para pagamento de retribuição
#13.1
02/04/1997
RPI 1366
Deferimento
#9.1
03/26/1996
RPI 1321
Exigência - art. 36 da LPI
#6.1
07/18/1995
RPI 1285
Solicitação de exame técnico
#4.1
11/13/1990
RPI 1041
Publicação do pedido de patente
#3.1
06/26/1990
RPI 1024
Pedido de patente depositado
#2.1
03/27/1990
RPI 1011
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