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Official data from INPI

DISPOSIÇÃO DE VÁLVULA DE CONTROLE E CONJUNTO DE VÁLVULA DE SISTEMA DE FRENAGEM FERROVIÁRIO

ArquivadaInvention Patent

Application data

Number

PI8205316

Type

Invention Patent

Filing

09/10/1982

Publication

08/23/1983

Progress at the INPI

  1. Filing09/10/82
  2. Publication08/23/83
  3. Examination11/05/85
  4. Allowance06/09/87
  5. Abandoned
  6. In force

The application was allowed on 06/09/1987 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 11/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Westinghouse Brake & Signal Company Limited

GB

Inventors

D. W. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8127541 · 09/11/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

11/08/1988

RPI 942

Notificação para pagamento de retribuição

#13.1

09/29/1987

RPI 884

Deferimento

#9.1

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

11/05/1985

RPI 785

Publicação do pedido de patente

#3.1

08/23/1983

RPI 670

Pedido de patente depositado

#2.1

10/26/1982

RPI 627

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