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Official data from INPI

DISPOSITIVO PARA REGILAR O JOGO DE VALVULAS DE MOTORES DE COMBUSTAO INTERNA

Em AnáliseInvention Patent

Application data

Number

PI7706439

Type

Invention Patent

Filing

09/28/1976

Publication

-

Progress at the INPI

  1. Filing09/28/76
  2. Publication
  3. Examination
  4. Allowance04/27/82
  5. Grant11/30/82
  6. Terminated12/15/87

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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AUDI NSU AUTO UNION AG

Inventors

L. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

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

Exigência - art. 36 da LPI

#6.1

10/13/1981

RPI 573

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