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Official data from INPI

Máquina de construção de vias férreas para a distribuição e perfilação do cascalho do leito de uma via férrea.

ConcedidaInvention Patent

Application data

Number

PI7907855

Type

Invention Patent

Filing

12/03/1979

Publication

-

Progress at the INPI

  1. Filing12/03/79
  2. Publication
  3. Examination11/16/82
  4. Allowance05/10/83
  5. Grant11/29/83
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Franz Plasser Bahnbaumaschinen-Industrie-Gesellschaft m.b.h.

AT

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Inventors

T. J. (pessoa física)

Technical data

IPC Classification

Priority claims

AT

A 806/79 · 02/02/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Solicitação de exame técnico

#4.1

11/16/1982

RPI 630

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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