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Official data from INPI

PROCESSO E DISPOSITIVO UTILIZADOS NA CONFECÇÃO DE BOCA DE FURO DE GUSA EM ALTO FORNO

Em AnáliseInvention Patent
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Application data

Number

PI8502951

Type

Invention Patent

Filing

06/10/1985

Publication

01/27/1987
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Progress at the INPI

  1. Filing06/10/85
  2. Publication01/27/87
  3. Abandoned06/16/87
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/16/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica de Tubarão S/A - CST

ES, BR

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Inventors

V. A. (pessoa física)

BR

W. C. (pessoa física)

BR

Technical data

IPC Classification

C21B 7/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Publicação do pedido de patente

#3.1

01/27/1987

RPI 849

Pedido de patente depositado

#2.1

09/03/1985

RPI 776

Arquivamento - Art. 36 §1° da LPI

#11.2

11/17/1992

RPI 1146

Exigência - art. 36 da LPI

#6.1

12/10/1991

RPI 1097

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