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Official data from INPI

PROCESSO E SISTEMA CATALITICO PARA POLIMERIZACAO ESTEREOESPECIFICA DE OLEFINAS

ConcedidaInvention Patent

Application data

Number

PI8103392

Type

Invention Patent

Filing

07/11/1980

Publication

08/24/1982

Progress at the INPI

  1. Filing07/11/80
  2. Publication08/24/82
  3. Examination02/16/83
  4. Allowance11/26/85
  5. Grant11/25/86
  6. Terminated06/27/95

The patent was granted on 11/25/1986 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: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MITSUI TOATSU CHEMICALS [JP]

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Inventors

T. U. (pessoa física)

T. S. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/25/1986

RPI 840

Notificação para pagamento de retribuição

#13.1

04/15/1986

RPI 808

Deferimento

#9.1

11/26/1985

RPI 788

8.1

03/19/1985

RPI 752

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

02/16/1983

RPI 643

Publicação do pedido de patente

#3.1

08/24/1982

RPI 618

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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