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Official data from INPI

TRUQUE DE VAGAO FERROVIARIO

ConcedidaInvention Patent

Application data

Number

PI7906877

Type

Invention Patent

Filing

10/25/1978

Publication

-

Progress at the INPI

  1. Filing10/25/78
  2. Publication
  3. Examination
  4. Allowance05/04/82
  5. Grant11/30/82
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 11/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BUDD CO

See this company's full portfolio

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

09/08/1982

RPI 620

Deferimento

#9.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

Pedido de licença compulsória

#20.1

05/01/1990

RPI 1016

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