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Official data from INPI

PROCESSO PARA EXTRAÇÃO DE METAIS

Em AnáliseInvention Patent

Application data

Number

PI9002509

Type

Invention Patent

Filing

05/28/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/28/90
  2. Publication08/13/91
  3. Examination11/03/93
  4. Allowance
  5. Grant
  6. In force

Published on 08/13/1991, 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: 10/08/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cyanamid Canada Inc

CA

Inventors

A. R. (pessoa física)

W. R. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

CA

601,365 · 05/31/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

10/08/1996

RPI 1349

Solicitação de exame técnico

#4.1

11/03/1993

RPI 1196

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

10/09/1990

RPI 1036

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