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Official data from INPI

Processo para a produção de um pistão especialmente para motores à combustão bem como pistão produzido consoante este processo.

Em AnáliseInvention Patent

Application data

Number

PI7904103

Type

Invention Patent

Filing

06/27/1979

Publication

-

Progress at the INPI

  1. Filing06/27/79
  2. Publication
  3. Examination
  4. Allowance04/05/83
  5. Grant10/25/83
  6. Terminated06/14/88

The patent was granted on 10/25/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan Aluminiumwerk Nurnberg Gmbh

Inventors

M. E. (pessoa física)

R. F. (pessoa física)

Technical data

IPC Classification

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

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/30/1983

RPI 671

Deferimento

#9.1

04/05/1983

RPI 650

Exigência - art. 36 da LPI

#6.1

04/27/1982

RPI 601

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