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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE POLÍMEROS DE ALFA-OLEFINA DE ALTA ESTÉREO-REGULARIDADE.

ConcedidaInvention Patent

Application data

Number

PI8106079

Type

Invention Patent

Filing

09/23/1981

Publication

06/08/1982

Progress at the INPI

  1. Filing09/23/81
  2. Publication06/08/82
  3. Examination06/26/84
  4. Allowance10/15/85
  5. Grant05/27/86
  6. Terminated09/13/94

The patent was granted on 05/27/1986 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sumitomo Chemical Company, Limited

JP

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Inventors

A. S. (pessoa física)

H. (pessoa física)

J. K. (pessoa física)

T. S. (pessoa física)

Y. (pessoa física)

Y. N. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

136067/80 · 09/29/1980

JP

136068/80 · 09/29/1980

JP

136069/80 · 09/29/1980

JP

136070/80 · 09/29/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Deferimento

#9.1

10/15/1985

RPI 782

Pedido de certificado de adição de invenção

#5.1

11/27/1984

RPI 736

Solicitação de exame técnico

#4.1

06/26/1984

RPI 714

Publicação do pedido de patente

#3.1

06/08/1982

RPI 607

Pedido de patente depositado

#2.1

11/10/1981

RPI 577

Anuidade - prazo legal encerrado

#18.2

09/13/1994

RPI 1241

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