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Official data from INPI

COMPOSIÇÃO DE POLIOL ESTÁVEL E PROCESSO PARA PREPARAÇÃO DE UM POLIURETANO

DeferidaInvention Patent

Application data

Number

PI8501123

Type

Invention Patent

Filing

03/13/1985

Publication

11/05/1985

Progress at the INPI

  1. Filing03/13/85
  2. Publication11/05/85
  3. Examination09/30/86
  4. Allowance11/14/89
  5. Grant05/29/90
  6. Terminated05/21/96

The patent was granted on 05/29/1990 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

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Inventors

A. W. (pessoa física)

G. B. (pessoa física)

J. A. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8406677 · 03/14/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

Exigência - art. 36 da LPI

#6.1

05/16/1989

RPI 969

Solicitação de exame técnico

#4.1

09/30/1986

RPI 832

Publicação do pedido de patente

#3.1

11/05/1985

RPI 785

Pedido de patente depositado

#2.1

06/04/1985

RPI 763

Anuidade - prazo legal encerrado

#18.2

05/21/1996

RPI 1329

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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