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Official data from INPI

COMBINAÇÃO DE DORMENTE DE TRILHO COM GRAMPO PRENDEDOR

ConcedidaInvention Patent

Application data

Number

PI8203537

Type

Invention Patent

Filing

06/17/1982

Publication

01/17/1984

Progress at the INPI

  1. Filing06/17/82
  2. Publication01/17/84
  3. Examination03/12/85
  4. Allowance12/16/86
  5. Grant07/28/87
  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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. A. (pessoa física)

AU

Inventors

J. C. (pessoa física)

GB

W. L. (pessoa física)

AU

Technical data

IPC Classification

Priority claims

AU

PF 2427 · 01/25/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Conhecimento de parecer técnico

#7.1

11/26/1985

RPI 788

Solicitação de exame técnico

#4.1

03/12/1985

RPI 751

Publicação do pedido de patente

#3.1

01/17/1984

RPI 691

Pedido de patente depositado

#2.1

08/03/1982

RPI 615

Carta-patente expirada

#21.1

Patente extinta em 17/06/97

07/01/2008

RPI 1956

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