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Official data from INPI

CONJUNTO SOBRE UM TRILHO DE VIA FÉRREA, PROCESSO DE FABRICAÇÃO DO MESMO E GRAMPO PARA TRILHOS

Em AnáliseInvention Patent

Application data

Number

PI8000945

Type

Invention Patent

Filing

02/14/1980

Publication

-

Progress at the INPI

  1. Filing02/14/80
  2. Publication
  3. Examination
  4. Allowance11/29/83
  5. Grant05/29/84
  6. Terminated06/21/88

The patent was granted on 05/29/1984 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pandrol Limited

GB

See this company's full portfolio

Inventors

D. G. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

7905443 · 02/15/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/20/1984

RPI 700

Deferimento

#9.1

11/29/1983

RPI 684

Republicação - classificação IPC

#15.11

05/10/1983

RPI 655

Conhecimento de parecer técnico

#7.1

05/03/1983

RPI 654

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