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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8400824

Type

Invention Patent

Filing

02/23/1984

Publication

10/02/1984

Progress at the INPI

  1. Filing02/23/84
  2. Publication10/02/84
  3. Examination04/23/85
  4. Allowance03/14/89
  5. Grant09/26/89
  6. Terminated12/24/96

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cookson Laminox Limited

GB

Inventors

L. D. (pessoa física)

T. W. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Deferimento

#9.1

03/14/1989

RPI 960

Exigência - art. 36 da LPI

#6.1

09/27/1988

RPI 936

Solicitação de exame técnico

#4.1

04/23/1985

RPI 757

Publicação do pedido de patente

#3.1

10/02/1984

RPI 728

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

Pedido de licença compulsória

#20.1

08/21/1990

RPI 1029

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