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Official data from INPI

PROCESSO DE SEPARAÇÃO E DE RECUPERAÇÃO DE METAIS, EM MISTURAS DE SULFETOS METÁLICOS TAIS COMO OS MINÉRIOS DE CHUMBO.

Em AnáliseInvention Patent

Application data

Number

PI8606886

Type

Invention Patent

Filing

09/26/1986

Publication

11/03/1987

Progress at the INPI

  1. Filing09/26/86
  2. Publication11/03/87
  3. Examination04/05/88
  4. Allowance
  5. Grant
  6. In force

Published on 11/03/1987, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 04/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Extramet

Extramet S.A.

Inventors

P. N. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

85/14325 · 09/27/1985

FR

PCT/86/00331 · 09/26/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/05/1988

RPI 911

Notificação de entrada na fase nacional - PCT

#1.3

11/03/1987

RPI 889

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C22B 3/00; C22B 13/04; C25C 1/18; C22B 19/20; C22B 25/00; C25C 1/00.

03/27/2018

RPI 2464

Retificação

#15.3

09/17/1991

RPI 1085

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