Official data from INPI

METODO E DISPOSITIVO PARA PRODUCAO DE FERRO LIQUIDO

Em AnáliseInvention Patent

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Application data

Number

PI8304960

Type

Invention Patent

Filing

09/13/1983

Publication

04/16/1985

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Progress at the INPI

Under appeal

Filing09/13/83
Publication04/16/85
Examination07/29/86
Refused02/06/90
Grant
In force

The application was refused by the INPI on 02/06/1990. The invention was never patented.

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Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NEW ZEALAND STEEL LTD [NZ]

Inventors

B. P. (pessoa física)

S. W. (pessoa física)

Technical data

IPC Classification

C21B 11/10

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

05/16/1989

RPI 969

Solicitação de exame técnico

#4.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

04/16/1985

RPI 756

Pedido de patente depositado

#2.1

11/08/1983

RPI 681

Indeferimento

#9.2

02/06/1990

RPI 1005

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