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Official data from INPI

TRUQUE FERROVIÁRIO COM DISPOSITIVO DE COMPENSAÇÃO

ConcedidaInvention Patent
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Application data

Number

PI8406122

Type

Invention Patent

Filing

11/30/1984

Publication

09/24/1985
View on INPI

Progress at the INPI

  1. Filing11/30/84
  2. Publication09/24/85
  3. Examination11/11/86
  4. Allowance08/23/88
  5. Grant09/26/89
  6. Terminated07/04/95

The patent was granted on 09/26/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

Inventors

W. J. (pessoa física)

US

Technical data

IPC Classification

B61F 5/52

Priority claims

US

559,551 · 12/08/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

12/13/1988

RPI 947

Deferimento

#9.1

08/23/1988

RPI 931

Exigência - art. 36 da LPI

#6.1

03/29/1988

RPI 910

Exigência - art. 36 da LPI

#6.1

10/13/1987

RPI 886

Solicitação de exame técnico

#4.1

11/11/1986

RPI 838

Publicação do pedido de patente

#3.1

09/24/1985

RPI 779

Pedido de patente depositado

#2.1

02/26/1985

RPI 749

Anuidade - prazo legal encerrado

#18.2

07/04/1995

RPI 1283

Pedido de licença compulsória

#20.1

08/07/1990

RPI 1027

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