Official data from INPI

PROCESSO PARA MEDIR E CONTROLAR A CONCENTRAÇÃO DE ALUMINA (AL2 O3)NO BANHO DE CRIOLITA QUE CONSTITUI O ELETRÓLITO NAS CÉLULAS USADAS PARA A PRODUÇÃO DE ALUMÍNIO PRIMÁRIO

ArquivadaInvention Patent

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Application data

Number

PI9100345

Type

Invention Patent

Filing

01/28/1991

Publication

04/07/1992

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Progress at the INPI

Filing01/28/91
Publication04/07/92
Abandoned
Allowance
Grant
In force

The application was abandoned: examination was not requested within the 36 months following the 01/28/1991 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/28/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. S. (pessoa física)

Inventors

F. G. (pessoa física)

Technical data

IPC Classification

C25C 3/06

Priority claims

21054 A/90 · 07/25/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

06/28/1994

RPI 1230

Publicação do pedido de patente

#3.1

04/07/1992

RPI 1114

Pedido de patente depositado

#2.1

08/06/1991

RPI 1079

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