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Official data from INPI

PROCESSO PARA PREPARAR COMPOSIÇÕES POLÍMERAS E COMPOSIÇÃO POLÍMERA

ConcedidaInvention Patent

Application data

Number

PI8205852

Type

Invention Patent

Filing

10/06/1982

Publication

09/06/1983

Progress at the INPI

  1. Filing10/06/82
  2. Publication09/06/83
  3. Examination09/03/85
  4. Allowance06/20/89
  5. Grant11/28/89
  6. Terminated04/02/96

The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

A. C. (pessoa física)

GB

D. B. (pessoa física)

GB

I. S. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

81301114 · 10/06/1981

GB

8130115 · 10/06/1981

GB

8130116 · 10/06/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

10/17/1989

RPI 991

Deferimento

#9.1

06/20/1989

RPI 974

Exigência - art. 36 da LPI

#6.1

03/29/1988

RPI 910

Solicitação de exame técnico

#4.1

09/03/1985

RPI 776

Publicação do pedido de patente

#3.1

09/06/1983

RPI 672

Pedido de patente depositado

#2.1

11/30/1982

RPI 632

Anuidade - prazo legal encerrado

#18.2

04/02/1996

RPI 1322

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