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Official data from INPI

PROCESSO DE OBTENÇÃO DE FERRO SILÍCIO DE BAIXOS TEORES DE CÁLCIO E ALUMÍNIO, A PARTIR DO FERRO SILÍCIO CONVENCIONAL PRODUZIDO EM FORNO ELÉTRICO A ARCO, POR OXIDAÇÃO DAS IMPUREZAS ATRAVÉS DA INJEÇÃO DE OXIGÊNIO E NITROGÊNIO NA PRESENÇA DE ESCÓRIA SINTÉTICA EM REATOR.

Prazo de SigiloInvention Patent

Application data

Number

PI8202890

Type

Invention Patent

Filing

05/19/1982

Publication

-

Progress at the INPI

  1. Filing05/19/82
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 05/19/1982. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 09/08/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Eletrometalur S/A Indústria e Comércio

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

2.2

09/08/1982

RPI 620

Pedido de patente depositado

#2.1

07/06/1982

RPI 611

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