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Official data from INPI

SOLUÇÃO DE SILICATO DE LÍTIO PARA USO EM BASTÕES DE SOLDAGEM, PROCESSO PARA PREPARAR BASTÕES DE SOLDAGEM E PROCESSO PARA PREPARAR UMA SOLUÇÃO DE SILICATO DE LÍTIO

Prazo de SigiloInvention Patent

Application data

Number

PI8902599

Type

Invention Patent

Filing

06/05/1989

Publication

12/26/1990

Progress at the INPI

  1. Filing06/05/89
  2. Publication12/26/90
  3. Examination04/09/91
  4. Allowance
  5. Grant
  6. In force

Published on 12/26/1990, 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: 07/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V

NL

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Inventors

T. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/11/1989

RPI 977

Retificação

#15.3

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

04/09/1991

RPI 1062

Publicação do pedido de patente

#3.1

12/26/1990

RPI 1047

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