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Official data from INPI

APERFEIÇOAMENTO EM E REFERENTE AO PROCESSO DE LIXIVIAÇÃO NA RECUPERAÇÃO DE MINÉRIOS,EM MINÉRIO DE BAIXO TEOR.

IndeferidaInvention Patent

Application data

Number

PI8108455

Type

Invention Patent

Filing

12/10/1981

Publication

05/18/1982

Progress at the INPI

Under appeal
  1. Filing12/10/81
  2. Publication05/18/82
  3. Examination08/10/82
  4. Refused12/11/84
  5. Grant
  6. In force

The application was refused by the INPI on 12/11/1984. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 12/11/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Empresa Brasileira de Bio Metalúrgia Ltda EMBRAL

Inventors

D. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

12/11/1984

RPI 738

Solicitação de exame técnico

#4.1

08/10/1982

RPI 616

Publicação antecipada

#3.2

05/18/1982

RPI 604

Pedido de patente depositado

#2.1

02/24/1982

RPI 592

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