Publicação do pedido de patente
#3.1
02/08/1989
RPI 955
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Official data from INPI
PROCESSO DE PREPARAÇÃO DE COPOLÍMEROS EM BLOCOS LINEARES, COM QUATRO BLOCOS ALTERNADOS.
PublicadaInvention Patent
Application data
Number
PI8803422Type
Invention Patent
Filing
07/04/1988
Publication
02/08/1989
Progress at the INPI
- Filing07/04/88
- Publication02/08/89
- Examination02/06/90
- Allowance03/30/99
- Grant08/24/99
- Expired12/11/12
The letters patent expired on 12/11/2012: 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: 02/08/1989. 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).
Pedido de patente depositado
#2.1
12/20/1988
RPI 948
Carta-patente expirada
#21.1
Patente extinta em 24/08/2009
12/11/2012
RPI 2188
Concessão da patente
#16.1
08/24/1999
RPI 1494
Deferimento
#9.1
03/30/1999
RPI 1473
Exigência - art. 36 da LPI
#6.1
09/29/1998
RPI 1449
Solicitação de exame técnico
#4.1
02/06/1990
RPI 1005
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