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Official data from INPI

PROCESSO PARA AUMENTAR OU MODIFICAR AO MENOS TEMPORARIAMENTE A PRODUÇÃO DE UM ALTO FORNO

Em AnáliseInvention Patent

Application data

Number

PI8505820

Type

Invention Patent

Filing

11/20/1985

Publication

08/12/1986

Progress at the INPI

  1. Filing11/20/85
  2. Publication08/12/86
  3. Examination08/02/88
  4. Allowance01/19/93
  5. Grant07/27/93
  6. Terminated06/04/96

The patent was granted on 07/27/1993 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: 08/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut de Recherches de la Siderurgie Française - IRSID

FR

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Inventors

J. M. (pessoa física)

FR

L. M. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

84/18075 · 11/21/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/02/1988

RPI 928

Publicação do pedido de patente

#3.1

08/12/1986

RPI 825

Pedido de patente depositado

#2.1

01/21/1986

RPI 796

Anuidade - prazo legal encerrado

#18.2

06/04/1996

RPI 1331

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

05/04/1993

RPI 1170

Deferimento

#9.1

01/19/1993

RPI 1155

Conhecimento de parecer técnico

#7.1

11/05/1991

RPI 1092

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