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Official data from INPI

VEDAÇÃO A VAPOR PARA PEÇA FERROSA TRATADA COM NITROGÊNIO

Prazo de SigiloInvention Patent

Application data

Number

PI8805438

Type

Invention Patent

Filing

10/21/1988

Publication

03/14/1989

Progress at the INPI

  1. Filing10/21/88
  2. Publication03/14/89
  3. Examination01/02/90
  4. Allowance
  5. Grant
  6. In force

Published on 03/14/1989, 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: 03/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lindberg do Brasil Indústria e Comércio Ltda

SP, BR

Inventors

E. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

03/14/1989

RPI 960

Publicação antecipada

#3.2

03/14/1989

RPI 960

Retificação

#15.3

11/01/1994

RPI 1248

Solicitação de exame técnico

#4.1

01/02/1990

RPI 1000

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