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Official data from INPI

PROCESSO PARA PRÉ-TRATAMENTO DE SUPERFÍCIE METÁLICAS

Prazo de SigiloInvention Patent

Application data

Number

PI8904315

Type

Invention Patent

Filing

08/28/1989

Publication

04/17/1990

Progress at the INPI

  1. Filing08/28/89
  2. Publication04/17/90
  3. Examination01/14/92
  4. Allowance
  5. Grant
  6. In force

Published on 04/17/1990, 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gerhard Collardin GmbH

DE

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Inventors

C. F. (pessoa física)

R. M. (pessoa física)

W. R. (pessoa física)

Technical data

Priority claims

DE

P3829154.1 · 08/27/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/28/1989

RPI 997

Retificação

#15.3

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

01/14/1992

RPI 1102

Publicação do pedido de patente

#3.1

04/17/1990

RPI 1014

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