Official data from INPI

PROCESSO E EQUIPAMENTO PARA RECUPERACAO DE OXIDO DE VANADIO DE METAL EM FUSAO

IndeferidaInvention Patent

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Application data

Number

PI8304893

Type

Invention Patent

Filing

09/08/1983

Publication

04/16/1985

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Progress at the INPI

Under appeal

Filing09/08/83
Publication04/16/85
Examination07/29/86
Refused01/24/89
Grant
In force

The application was refused by the INPI on 01/24/1989. The invention was never patented.

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Latest action published by the INPI: 01/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NEW ZEALAND STEEL LTD [NZ]

Inventors

B. C. (pessoa física)

C. E. (pessoa física)

Technical data

IPC Classification

C01G 31/02 C21C 7/072 C22B 9/05

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

01/24/1989

RPI 953

Conhecimento de parecer técnico

#7.1

08/02/1988

RPI 928

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

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METODO E DISPOSITIVO PARA PRODUCAO DE FERRO LIQUIDO

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