Official data from INPI

PROCESSOS PARA REFINO DE MINÉRIOS DE ALUMÍNIO PARA A RECUPERAÇÃO DE ALUMINA

ArquivadaInvention Patent

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Application data

Number

PI9102650

Type

Invention Patent

Filing

06/24/1991

Publication

01/21/1992

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Progress at the INPI

Filing06/24/91
Publication01/21/92
Abandoned03/29/94
Allowance
Grant
In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/15/1998. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nalco Australia Pty Limited

Inventors

G. F. (pessoa física)

Technical data

IPC Classification

C01F 7/06 C30B 5/02

Priority claims

PK 0797 · 06/25/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

12/15/1998

RPI 1458

Exigência - art. 36 da LPI

#6.1

05/12/1998

RPI 1429

Solicitação de exame técnico

#4.1

03/29/1994

RPI 1217

14.4

07/14/1992

RPI 1128

Publicação do pedido de patente

#3.1

01/21/1992

RPI 1103

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