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Official data from INPI

PROCESSO PARA AUMENTO DE RENDIMENTO EM LINGOTAMENTO CONVENCIONAL.

Em AnáliseInvention Patent

Application data

Number

PI8605831

Type

Invention Patent

Filing

11/28/1986

Publication

06/28/1988

Progress at the INPI

  1. Filing11/28/86
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 11/28/1986. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - Grupo Siderbrás

RJ, BR

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Inventors

C. C. (pessoa física)

D. T. (pessoa física)

G. S. (pessoa física)

P. T. (pessoa física)

R. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/08/1989

RPI 981

Publicação do pedido de patente

#3.1

06/28/1988

RPI 923

Pedido de patente depositado

#2.1

01/19/1988

RPI 900

Retificação

#15.3

12/03/1991

RPI 1096

Pedido de certificado de adição de invenção

#5.1

01/16/1990

RPI 1002

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