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Official data from INPI

SEPARADOR ESPIRAL E PROCESSO DE FABRICAÇÃO DO MESMO

ConcedidaInvention Patent

Application data

Number

PI8207231

Type

Invention Patent

Filing

03/17/1982

Publication

03/01/1983

Progress at the INPI

  1. Filing03/17/82
  2. Publication03/01/83
  3. Examination10/23/84
  4. Allowance09/06/88
  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

P. G. (pessoa física)

AU

Technical data

IPC Classification

Priority claims

AU

PE 8046 · 03/18/1981

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

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

03/15/1988

RPI 908

Conhecimento de parecer técnico

#7.1

09/09/1986

RPI 829

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

10/23/1984

RPI 731

Notificação de entrada na fase nacional - PCT

#1.3

03/01/1983

RPI 645

Carta-patente expirada

#21.1

Patente extinta em 17/03/97

07/01/2008

RPI 1956

Transferência deferida

#25.1

Transferido de: BHP Titanium Minerals PTY Ltd.

10/13/1999

RPI 1501

Alteração de nome deferida

#25.4

Alterado de: Mineral Deposits PTY Ltd.

09/14/1999

RPI 1497

Alteração de nome deferida

#25.4

Alterado de: Mineral Deposits Limited.

08/17/1999

RPI 1493

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