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Official data from INPI

PROCESSO PARA RECUPERACAO DE 1,3-BUTADIENO OU 2-METIL-1,3-BUTADIENO DE ALTA PUREZA

ConcedidaInvention Patent
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Application data

Number

PI8206005

Type

Invention Patent

Filing

11/06/1981

Publication

09/13/1983
View on INPI

Progress at the INPI

  1. Filing11/06/81
  2. Publication09/13/83
  3. Examination12/27/83
  4. Allowance07/09/85
  5. Grant12/31/85
  6. In force11/06/01

The patent was granted on 12/31/1985 and is in force until 11/06/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:11/06/2001

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Latest action published by the INPI: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

JAPAN SYNTHETIC RUBBER CO LTD [JP]

Inventors

A. M. (pessoa física)

O. K. (pessoa física)

Y. H. (pessoa física)

Technical data

IPC Classification

C07C 11/167C07C 11/18C07C 7/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Pedido de certificado de adição de invenção

#5.1

05/15/1984

RPI 708

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação do pedido de patente

#3.1

09/13/1983

RPI 673

Pedido de patente depositado

#2.1

12/07/1982

RPI 633

22.2

Não conhecimento da petição apresentada em, 28/03/2007 de nº 020070038646/RJ.

12/26/2007

RPI 1929

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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