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Official data from INPI

SOLUCAO DE LIMPEZA ACIDA AQUOSA E PROCESSO PARA A LIMPEZA DE SUPERFICIES DE ALUMINIO

Em AnáliseInvention Patent

Application data

Number

PI8501513

Type

Invention Patent

Filing

04/02/1984

Publication

11/26/1985

Progress at the INPI

  1. Filing04/02/84
  2. Publication11/26/85
  3. Examination08/11/87
  4. Allowance
  5. Grant
  6. In force

Published on 11/26/1985, 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PARKER CHEMICAL CO [US]

Inventors

B. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/05/1989

RPI 998

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

06/25/1985

RPI 766

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