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Official data from INPI

PROCESSO PARA REMOVER PARTÍCULAS DE INCLUSÃO INDESEJADAS DE UM CORPO DE LIGA DE ALUMÍNIO OU ALUMÍNIO LÍQUIDO

PublicadaInvention Patent

Application data

Number

PI8802086

Type

Invention Patent

Filing

04/29/1988

Publication

11/29/1988

Progress at the INPI

  1. Filing04/29/88
  2. Publication11/29/88
  3. Examination10/16/90
  4. Allowance
  5. Grant
  6. In force

Published on 11/29/1988, 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

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Inventors

P. E. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8710200 · 04/29/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/29/1988

RPI 945

Pedido de patente depositado

#2.1

09/20/1988

RPI 935

Retificação

#15.3

05/03/1994

RPI 1222

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

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