Official data from INPI

PROCESSO PARA MELHORAR A PUREZA DE HIDROXIDOS DE METAIS ALCALINOS

IndeferidaInvention Patent

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Application data

Number

PI8407243

Type

Invention Patent

Filing

12/23/1983

Publication

11/26/1985

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Progress at the INPI

Under appeal

Filing12/23/83
Publication11/26/85
Examination10/06/87
Refused06/20/89
Grant
In force

The application was refused by the INPI on 06/20/1989. The invention was never patented.

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Latest action published by the INPI: 06/20/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NORTH BROKEN HILL LTD [AU]

Inventors

B. [. (pessoa física)

G. [. (pessoa física)

S. [. (pessoa física)

W. [. (pessoa física)

Pessoa física

Technical data

IPC Classification

C01D 1/04 C01D 1/28

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

06/20/1989

RPI 974

Conhecimento de parecer técnico

#7.1

10/04/1988

RPI 937

Solicitação de exame técnico

#4.1

10/06/1987

RPI 885

Notificação de entrada na fase nacional - PCT

#1.3

11/26/1985

RPI 788

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