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Official data from INPI

PROCESSO PARA TORNAR UMA OBRA DE ALVENARIA IMPERMEÁVEL A ÁGUA, COMPOSIÇÃO PARA TORNAR UMA OBRA DE ALVENARIA IMPERMEÁVEL A ÁGUA E COMPOSIÇÃO

PublicadaInvention Patent

Application data

Number

PI8704552

Type

Invention Patent

Filing

08/07/1987

Publication

02/28/1989

Progress at the INPI

  1. Filing08/07/87
  2. Publication02/28/89
  3. Examination05/28/91
  4. Allowance
  5. Grant
  6. In force

Published on 02/28/1989, 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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

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Inventors

D. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/28/1989

RPI 958

Pedido de patente depositado

#2.1

12/01/1987

RPI 893

Retificação

#15.3

10/18/1994

RPI 1246

Solicitação de exame técnico

#4.1

05/28/1991

RPI 1069

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