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Official data from INPI

PROCESSO PARA FORMAÇÃO DE UM REVESTIMENTO HIDROFÍLICO SOBRE A SUPERFÍCIE DE UM ARTIGO METÁLICO E ARTIGO DE MANUFATURA

PublicadaInvention Patent

Application data

Number

PI8801960

Type

Invention Patent

Filing

04/22/1988

Publication

11/22/1988

Progress at the INPI

  1. Filing04/22/88
  2. Publication11/22/88
  3. Examination01/22/91
  4. Allowance
  5. Grant
  6. In force

Published on 11/22/1988, 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: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

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Inventors

F. S. (pessoa física)

G. L. (pessoa física)

G. C. (pessoa física)

J. H. (pessoa física)

Technical data

IPC Classification

Priority claims

CA

535.497 · 04/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/22/1988

RPI 944

Pedido de patente depositado

#2.1

08/30/1988

RPI 932

Retificação

#15.3

11/23/1993

RPI 1199

Solicitação de exame técnico

#4.1

01/22/1991

RPI 1051

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