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Official data from INPI

PROCESSO APERFEICOADO PARA A FOSFATACAO DE SUPERFICIES METALICAS

Em AnáliseInvention Patent

Application data

Number

PI8400938

Type

Invention Patent

Filing

03/02/1983

Publication

10/09/1984

Progress at the INPI

  1. Filing03/02/83
  2. Publication10/09/84
  3. Examination05/20/86
  4. Allowance
  5. Grant
  6. In force

Published on 10/09/1984, 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: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PARKER CHEMICAL CO [US]

Inventors

H. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

09/06/1988

RPI 933

Solicitação de exame técnico

#4.1

05/20/1986

RPI 813

Publicação do pedido de patente

#3.1

10/09/1984

RPI 729

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

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