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Official data from INPI

VÁLVULA DE CONTROLE HIDRÁULICO PARA UM SISTEMA DE DIREÇÃO ASSISTIDA DE UM VEÍCULO.

Em AnáliseInvention Patent

Application data

Number

PI8504306

Type

Invention Patent

Filing

09/06/1985

Publication

04/14/1987

Progress at the INPI

  1. Filing09/06/85
  2. Publication04/14/87
  3. Examination07/18/89
  4. Allowance04/10/90
  5. Grant11/27/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A.E. Bishop & Associates Pty. Ltd., companhia australiana

AU

Inventors

A. B. (pessoa física)

AU

J. B. (pessoa física)

AU

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/18/1989

RPI 978

Publicação do pedido de patente

#3.1

04/14/1987

RPI 860

Pedido de patente depositado

#2.1

11/12/1985

RPI 786

Carta-patente expirada

#21.1

Patente extinta em 06/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

08/14/1990

RPI 1028

14.1

08/14/1990

RPI 1028

Deferimento

#9.1

04/10/1990

RPI 1013

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