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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8102622

Type

Invention Patent

Filing

04/29/1981

Publication

01/19/1982

Progress at the INPI

  1. Filing04/29/81
  2. Publication01/19/82
  3. Examination07/05/83
  4. Allowance06/17/86
  5. Grant12/30/86
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 12/30/1986. 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

W. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

10/14/1986

RPI 834

Deferimento

#9.1

06/17/1986

RPI 817

14.1

07/16/1985

RPI 769

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

Republicação - classificação IPC

#15.11

12/18/1984

RPI 739

Conhecimento de parecer técnico

#7.1

08/14/1984

RPI 721

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

01/19/1982

RPI 587

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 Ltd.

08/17/1999

RPI 1493

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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