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Official data from INPI

PROCESSO PARA PRODUZIR UM ACO LAMINADO DE BAIXO TEOR DE CARBONO

ConcedidaInvention Patent

Application data

Number

PI7705922

Type

Invention Patent

Filing

09/05/1977

Publication

-

Progress at the INPI

  1. Filing09/05/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant01/25/83
  6. Terminated08/28/90

The patent was granted on 01/25/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 01/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NIPPON STEEL CORP

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Inventors

A. O. (pessoa física)

K. H. (pessoa física)

K. K. (pessoa física)

O. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

12/15/1981

RPI 582

Anuidade - prazo legal encerrado

#18.2

08/28/1990

RPI 1030

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