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Official data from INPI

Processo para recuperar seletivamente chumbo de um minério ou concentrado portador de chumbo.

ConcedidaInvention Patent

Application data

Number

PI8008117

Type

Invention Patent

Filing

04/02/1980

Publication

-

Progress at the INPI

  1. Filing04/02/80
  2. Publication
  3. Examination05/25/82
  4. Allowance08/11/87
  5. Grant02/23/88
  6. Terminated08/09/94

The patent was granted on 02/23/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dextec Metallurgical Pty. Ltd.

AU

Inventors

E. P. (pessoa física)

Technical data

IPC Classification

Priority claims

AU

80/00001 · 04/02/1980

AU

PD 8329 · 04/09/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

Conhecimento de parecer técnico

#7.1

11/29/1983

RPI 684

Solicitação de exame técnico

#4.1

05/25/1982

RPI 605

Anuidade - prazo legal encerrado

#18.2

08/09/1994

RPI 1236

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