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Official data from INPI

PROCESSO PARA A RETIFICACAO NA VIA DA SUPERFICIE DA CABECA DOS TRILHOS DE UMA VIA FERREA E DISPOSITIVO PARA A SUA REALIZACAO

Em AnáliseInvention Patent

Application data

Number

PI7700824

Type

Invention Patent

Filing

02/18/1976

Publication

-

Progress at the INPI

  1. Filing02/18/76
  2. Publication
  3. Examination
  4. Allowance02/16/83
  5. Grant07/26/83
  6. Terminated05/10/88

The patent was granted on 07/26/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/10/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. I. (pessoa física)

Inventors

P. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/10/1988

RPI 916

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

06/14/1983

RPI 660

Deferimento

#9.1

02/16/1983

RPI 643

Exigência - art. 36 da LPI

#6.1

04/06/1982

RPI 598

6.2

10/20/1981

RPI 574

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