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Official data from INPI

PROCESSO PARA PRODUÇÃO DE UM COPOLÍMERO POR BLOCOS DE PROPILENOETILENO, E COPOLIMERO ASSIM OBTIDO.

Em AnáliseInvention Patent

Application data

Number

PI7904624

Type

Invention Patent

Filing

07/19/1979

Publication

-

Progress at the INPI

  1. Filing07/19/79
  2. Publication
  3. Examination04/13/82
  4. Allowance11/08/83
  5. Grant04/24/84
  6. Terminated05/17/88

The patent was granted on 04/24/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sumitomo Chemical Company, Limited.

JP

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Inventors

K. M. (pessoa física)

S. H. (pessoa física)

S. A. (pessoa física)

W. K. (pessoa física)

Y. K. (pessoa física)

Y. H. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

89151/78 · 07/20/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/28/1984

RPI 697

Deferimento

#9.1

11/08/1983

RPI 681

Exigência - art. 36 da LPI

#6.1

03/08/1983

RPI 646

Solicitação de exame técnico

#4.1

04/13/1982

RPI 599

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