Official data from INPI

PROCESSO PARA A RECUPERAÇÃO DE ZINCO A PARTIR DE MINÉRIOS OU CONCENTRADOS.

Em AnáliseInvention Patent

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Application data

Number

PI8506944

Type

Invention Patent

Filing

09/20/1985

Publication

12/23/1986

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Progress at the INPI

Under appeal

Filing09/20/85
Publication12/23/86
Examination06/30/87
Refused03/03/92
Grant
In force

The application was refused by the INPI on 03/03/1992. The invention was never patented.

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Latest action published by the INPI: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dextec Metallurgical Pty. Ltd

Inventors

P. E. (pessoa física)

Technical data

IPC Classification

C25C 7/06

Priority claims

PG 7516 · 10/05/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/30/1987

RPI 871

Notificação de entrada na fase nacional - PCT

#1.3

12/23/1986

RPI 844

Indeferimento

#9.2

03/03/1992

RPI 1109

Conhecimento de parecer técnico

#7.1

07/02/1991

RPI 1074

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