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Official data from INPI

PROCESSO DE CONTROLE DO FUNCIONAMENTO DE UM ALTO-FORNO E INSTALAÇÃO PARA A APLICAÇÃO DO DITO PROCESSO

Em AnáliseInvention Patent

Application data

Number

PI8505217

Type

Invention Patent

Filing

10/18/1985

Publication

07/29/1986

Progress at the INPI

  1. Filing10/18/85
  2. Publication07/29/86
  3. Examination08/16/88
  4. Allowance01/19/93
  5. Grant07/27/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Siderurgique du Nord et de L'est de la France (USINOR)

FR

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Inventors

J. L. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

84-16082 · 10/19/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/16/1988

RPI 930

Publicação do pedido de patente

#3.1

07/29/1986

RPI 823

Pedido de patente depositado

#2.1

12/17/1985

RPI 791

Carta-patente expirada

#21.1

Patente extinta em 18/10/2000

07/15/2008

RPI 1958

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

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