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Official data from INPI

PROCESSO PARA PRODUCAO DE ACO A PARTIR DE OXIDOS DE FERRO;A CONVERSAO DE OXIDOS DE FERRO EM CARBURETO DE FERRO;A CONVERSAO DE CARBURETO DE FERRO EM ACO;NO FORNO DE OXIGENIO BASICO;A FABRICACAO DE ACO A PARTIR DE CARBURETO DE FERRO NO FORNO DE OXIGENIO BASICO;E A CONCENTRACAO DE MINERIOS DE FERRO NAO-MAGNETICOS DE BAIXO TEOR

Em AnáliseInvention Patent

Application data

Number

PI7608606

Type

Invention Patent

Filing

09/29/1977

Publication

-

Progress at the INPI

  1. Filing09/29/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Expired07/27/93

The letters patent expired on 07/27/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. R. (pessoa física)

Inventors

S. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

11/01/1988

RPI 941

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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