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Official data from INPI

APERFEIÇOAMENTO EM BICOS DE CANHÃO DE LAMA DE ALTOS-FORNOS

Em AnáliseInvention Patent
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Application data

Number

PI8602164

Type

Invention Patent

Filing

05/06/1986

Publication

12/22/1987
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Progress at the INPI

  1. Filing05/06/86
  2. Publication12/22/87
  3. Abandoned03/29/88
  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: 03/29/1988. 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

A. B. (pessoa física)

BR

J. S. (pessoa física)

BR

M. Y. (pessoa física)

BR

S. 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

03/29/1988

RPI 910

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

11/11/1986

RPI 838

Arquivamento - Art. 36 §1° da LPI

#11.2

07/19/1994

RPI 1233

Exigência - art. 36 da LPI

#6.1

10/26/1993

RPI 1195

Retificação

#15.6

07/20/1993

RPI 1181

Retificação

#15.3

02/02/1993

RPI 1157

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