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Official data from INPI

PROCESSO PARA TRATAMENTO DE UMA SUPERFÍCIE DE ZINCO

Prazo de SigiloInvention Patent

Application data

Number

PI8903960

Type

Invention Patent

Filing

08/07/1989

Publication

03/20/1990

Progress at the INPI

  1. Filing08/07/89
  2. Publication03/20/90
  3. Examination05/19/92
  4. Allowance
  5. Grant
  6. In force

Published on 03/20/1990, 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nihon Parkerizing Co , Ltd

JP

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Inventors

H. I. (pessoa física)

JP

K. M. (pessoa física)

T. M. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

63197585 · 08/08/1988

JP

63199370 · 08/10/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/21/1989

RPI 996

Retificação

#15.3

10/03/1995

RPI 1296

Solicitação de exame técnico

#4.1

05/19/1992

RPI 1120

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

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