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Official data from INPI

PROCESSO PARA PRODUCAO CONTINUA DE RESINAS DE ESTIRENO MODIFICADAS COM BORRACHA

ConcedidaInvention Patent

Application data

Number

PI8107906

Type

Invention Patent

Filing

12/05/1980

Publication

09/14/1982

Progress at the INPI

  1. Filing12/05/80
  2. Publication09/14/82
  3. Examination04/19/83
  4. Allowance09/04/84
  5. Grant03/26/85
  6. 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 specialist

Latest action published by the INPI: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MITSUI TOATSU CHEMICALS [JP]

TOYO ENGINEERING CORP [JP]

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Inventors

M. (pessoa física)

M. I. (pessoa física)

N. I. (pessoa física)

T. (pessoa física)

Y. F. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

09/04/1984

RPI 724

Solicitação de exame técnico

#4.1

04/19/1983

RPI 652

Publicação do pedido de patente

#3.1

09/14/1982

RPI 621

Pedido de patente depositado

#2.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

Patente extinta em 04/12/96

08/19/2008

RPI 1963

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