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Official data from INPI

APERFEICOAMENTO EM LIGA METALICA

Em AnáliseInvention Patent

Application data

Number

PI7704053

Type

Invention Patent

Filing

06/23/1976

Publication

-

Progress at the INPI

  1. Filing06/23/76
  2. Publication
  3. Examination
  4. Allowance03/30/82
  5. Grant
  6. Terminated12/15/87

The patent was granted 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

DAIDO METAL CO LTD

GLACIER METAL CO LTD

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Notificação para pagamento de retribuição

#13.1

07/20/1982

RPI 613

Deferimento

#9.1

03/30/1982

RPI 597

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