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Official data from INPI

SEPARADOR DE LÍQUIDOS E PROCESSO PARA SEPARAR COMPONENTES DE UMA MISTURA LÍQUIDA

Arquivada/ExtintaInvention PatentPCT · AU1988000186

Application data

Number

PI8807544

Type

Invention Patent

Filing

06/10/1988

Publication

04/10/1990

PCT

AU1988000186

Progress at the INPI

  1. Filing06/10/88
  2. Publication04/10/90
  3. Examination01/29/91
  4. Allowance03/19/96
  5. Grant12/31/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Baker Hughes Limited

GB

Inventors

C. K. (pessoa física)

AU

N. C. (pessoa física)

AU

Technical data

Priority claims

AU

PI 2390/87 · 06/10/1987

AU

PI 6102/87 · 12/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/06/2003

09/02/2008

RPI 1965

Transferência deferida

#25.1

11/11/1997

RPI 1406

Concessão da patente

#16.1

12/31/1996

RPI 1361

Deferimento

#9.1

03/19/1996

RPI 1320

Solicitação de exame técnico

#4.1

01/29/1991

RPI 1052

Solicitação de exame não realizada

#4.2

11/27/1990

RPI 1043

Notificação de entrada na fase nacional - PCT

#1.3

04/10/1990

RPI 1013

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