(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

SEPARADOR ESPIRAL E PROCESSO PARA SEPARAÇÃO

Em ExigênciaInvention Patent

Application data

Number

PI8406596

Type

Invention Patent

Filing

04/12/1984

Publication

03/12/1985

Progress at the INPI

  1. Filing04/12/84
  2. Publication03/12/85
  3. Examination06/16/87
  4. Allowance03/12/91
  5. Grant10/29/91
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 05/09/1989. 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

PF 8850 · 04/13/1983

AU

PF 9618 · 05/31/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

05/09/1989

RPI 968

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Notificação de entrada na fase nacional - PCT

#1.3

03/12/1985

RPI 751

Carta-patente expirada

#21.1

Patente extinta em 12/04/99

07/08/2008

RPI 1957

Transferência deferida

#25.1

Transferido de: BHP Titanium Minerals PTY LTD

01/05/1999

RPI 1461

Alteração de nome deferida

#25.4

Alterado de: Mineral Deposits PTY Ltd

12/01/1998

RPI 1456

Alteração de nome deferida

#25.4

Alterado de: Mineral Deposits LTD

11/10/1998

RPI 1453

Concessão da patente

#16.1

10/29/1991

RPI 1091

Notificação para pagamento de retribuição

#13.1

06/25/1991

RPI 1073

Deferimento

#9.1

03/12/1991

RPI 1058

Exigência - art. 36 da LPI

#6.1

10/02/1990

RPI 1035

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.