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Official data from INPI

PROCESSO PARA PRODUÇÃO DE FOLHAS METÁLICAS VIA RECOZIMENTO CONTÍNUO

Em AnáliseInvention Patent

Application data

Number

PI9000025

Type

Invention Patent

Filing

01/04/1990

Publication

10/08/1991

Progress at the INPI

  1. Filing01/04/90
  2. Publication10/08/91
  3. Examination04/27/93
  4. Allowance
  5. Grant
  6. In force

Published on 10/08/1991, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 12/23/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

D. J. (pessoa física)

P. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/23/1997

RPI 1409

Solicitação de exame técnico

#4.1

04/27/1993

RPI 1169

Publicação do pedido de patente

#3.1

10/08/1991

RPI 1088

Pedido de patente depositado

#2.1

05/22/1990

RPI 1019

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