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Official data from INPI

EXTRAÇÃO E RECUPERAÇÃO DE OURO

Arquivada/ExtintaInvention PatentPCT · AU1991000057

Application data

Number

PI9104641

Type

Invention Patent

Filing

02/19/1991

Publication

03/24/1992

PCT

AU1991000057

Progress at the INPI

  1. Filing02/19/91
  2. Publication03/24/92
  3. Examination01/05/93
  4. Allowance10/06/98
  5. Grant06/29/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CRA Services Limited

AU

Inventors

G. K. (pessoa física)

AU

Technical data

IPC Classification

Priority claims

AU

PJ 8790 · 02/23/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 19/02/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

06/29/1999

RPI 1486

Deferimento

#9.1

10/06/1998

RPI 1450

Solicitação de exame técnico

#4.1

01/05/1993

RPI 1153

Notificação de entrada na fase nacional - PCT

#1.3

03/24/1992

RPI 1112

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