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Official data from INPI

PROCESSOS PARA REDUÇÃO DE METAL POR FUNDIÇÃO DIRETA A PARTIR DE MINÉRIO DE ÓXIDO DESTE E PARA PRODUÇÃO DE COQUE METALÚRGICO OU CARVÃO ANIMAL E APARELHO PARA REALIZAÇÃO DESSES PROCESSOS.

Em AnáliseInvention Patent

Application data

Number

PI8505996

Type

Invention Patent

Filing

11/29/1985

Publication

08/19/1986

Progress at the INPI

  1. Filing11/29/85
  2. Publication08/19/86
  3. Abandoned09/20/88
  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.

Talk to a specialist

Latest action published by the INPI: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Canadian Patents and Development Ltd -Soc.Canadienne des Brevets Et D'Explotation Limitee

CA

Inventors

C. B. (pessoa física)

W. L. (pessoa física)

Technical data

IPC Classification

Priority claims

CA

469.222 · 12/03/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Publicação do pedido de patente

#3.1

08/19/1986

RPI 826

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Arquivamento - Art. 36 §1° da LPI

#11.2

11/03/1993

RPI 1196

Exigência - art. 36 da LPI

#6.1

05/18/1993

RPI 1172

Conhecimento de parecer técnico

#7.1

12/03/1991

RPI 1096

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