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Official data from INPI

SEPARADOR EM ESPIRAL

ConcedidaInvention Patent

Application data

Number

PI8205924

Type

Invention Patent

Filing

10/08/1982

Publication

09/06/1983

Progress at the INPI

  1. Filing10/08/82
  2. Publication09/06/83
  3. Examination11/26/85
  4. Allowance11/29/88
  5. Grant08/29/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BHP Titanium Minerals PTY Ltd

AU

Clyde Industries Limited

AU

Mineral Deposits Limited

AU

Mineral Deposits PTY Ltd

AU

Inventors

D. W. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

AU

PF1127 · 10/09/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

11/29/1988

RPI 945

Exigência - art. 36 da LPI

#6.1

05/31/1988

RPI 919

6.2

03/24/1987

RPI 857

Solicitação de exame técnico

#4.1

11/26/1985

RPI 788

14.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

09/06/1983

RPI 672

Pedido de patente depositado

#2.1

12/07/1982

RPI 633

Carta-patente expirada

#21.1

Patente extinta em 08/10/97

07/01/2008

RPI 1956

Transferência deferida

#25.1

Transferido de: BHP Titanium Minerals PTY Ltd.

09/08/1999

RPI 1496

Alteração de nome deferida

#25.4

Alterado de: Mineral Deposits PTY Ltd.

08/10/1999

RPI 1492

Alteração de nome deferida

#25.4

Alterado de: Mineral Deposits Limited.

07/13/1999

RPI 1488

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