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Official data from INPI

PROCESSO PARA APERFEIÇOAR A RESISTÊNCIA A ÁGUA DE UM ARTIGO E O RESPECTIVO ARTIGO

PublicadaInvention Patent

Application data

Number

PI8901920

Type

Invention Patent

Filing

04/24/1989

Publication

11/28/1989

Progress at the INPI

  1. Filing04/24/89
  2. Publication11/28/89
  3. Examination10/30/90
  4. Allowance
  5. Grant
  6. In force

Published on 11/28/1989, 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T & N Technology Limited

GB

Inventors

A. A. (pessoa física)

J. B. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8809820.7 · 04/26/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/28/1989

RPI 997

Pedido de patente depositado

#2.1

05/30/1989

RPI 971

Retificação

#15.3

09/05/1995

RPI 1292

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

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