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Official data from INPI

PROCESSO APERFEICOADO PARA LIXIVIACAO DE MINERIOS,BASEADO NA FORMACAO SIMULTANEA E NA ACAO CONJUNTA DE BISSULFITO E BISSULFATO ALCALINOS,PREFERENCIALMENTE DE AMONIO,APLICAVEL A MINERIOS LATERITICOS DE NIQUEL E OUTROS

Em AnáliseInvention Patent

Application data

Number

PI8004536

Type

Invention Patent

Filing

07/21/1980

Publication

03/23/1982

Progress at the INPI

  1. Filing07/21/80
  2. Publication03/23/82
  3. Examination07/06/82
  4. Allowance04/08/86
  5. Grant10/29/86
  6. Terminated07/12/88

The patent was granted on 10/29/1986 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. A. (pessoa física)

P. K. (pessoa física)

Inventors

C. [. (pessoa física)

P. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

10/29/1986

RPI 836

Notificação para pagamento de retribuição

#13.1

08/12/1986

RPI 825

Deferimento

#9.1

04/08/1986

RPI 807

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

07/06/1982

RPI 611

Publicação do pedido de patente

#3.1

03/23/1982

RPI 596

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