Official data from INPI

Conversão hidrometalúrgica de sulfeto de zinco em sulfato a partir de minérios e concentrados contendo sulfeto de zinco

ArquivadaInvention PatentPCT · CA1995000473

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Application data

Number

PI9508598

Type

Invention Patent

Filing

08/09/1995

Publication

11/11/1997

PCT

CA1995000473

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Progress at the INPI

Filing08/09/95
Publication11/11/97
Examination
Allowance02/20/01
Abandoned
In force

The application was allowed on 02/20/2001 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

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Latest action published by the INPI: 12/04/2001. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R & O Mining Processing Ltd

Inventors

E. P. (pessoa física)

R. O. (pessoa física)

Technical data

IPC Classification

C22B 3/08 C22B 3/44

Priority claims

290206 · 08/15/1994

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

12/04/2001

RPI 1613

Deferimento

#9.1

02/20/2001

RPI 1572

Exigência - art. 36 da LPI

#6.1

03/08/2000

RPI 1522

Notificação de entrada na fase nacional - PCT

#1.3

11/11/1997

RPI 1406

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