Concessão da patente
#16.1
11/25/1986
RPI 840
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Official data from INPI
PROCESSO E APARELHO PARA A POLI - CONDENSACAO CONTINUA DE W - AMINO - ACIDOS ALIFATICOS SUPERIORES
ConcedidaInvention Patent
Application data
Number
PI8207994Type
Invention Patent
Filing
11/26/1981
Publication
10/18/1983
Progress at the INPI
- Filing11/26/81
- Publication10/18/83
- Examination02/07/84
- Allowance02/12/86
- Grant11/25/86
- Expired08/19/08
The letters patent expired on 08/19/2008: 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: 11/25/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
TORAY INDUSTRIES [JP]
Inventors
E. [. (pessoa física)
T. [. (pessoa física)
T. [. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
06/24/1986
RPI 818
Deferimento
#9.1
02/12/1986
RPI 799
Exigência - art. 36 da LPI
#6.1
05/07/1985
RPI 759
Solicitação de exame técnico
#4.1
02/07/1984
RPI 694
Notificação de entrada na fase nacional - PCT
#1.3
10/18/1983
RPI 678
Carta-patente expirada
#21.1
Patente extinta em 25/11/97
08/19/2008
RPI 1963
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