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Official data from INPI

VAGÃO GUIADO PRO TRILHOS PARA TRANPROTAR E ESPALHAR MATERIAL DE LASTRO E ATERRO PARA A MANUTENÇÃO DE LEITOS DE VIAS FÉRREAS E SEMELHANTES.

Em AnáliseInvention Patent

Application data

Number

PI7800204

Type

Invention Patent

Filing

01/13/1978

Publication

-

Progress at the INPI

  1. Filing01/13/78
  2. Publication
  3. Examination
  4. Allowance04/27/82
  5. Grant11/30/82
  6. Terminated06/14/88

The patent was granted on 11/30/1982 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AB Vretstorp- Verken

AB Vretstorp-Verken

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Priority claims

US

P 7700770-6 · 01/25/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

08/31/1982

RPI 619

Deferimento

#9.1

04/27/1982

RPI 601

6.2

11/03/1981

RPI 576

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