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Official data from INPI

UMA COMBINAÇÃO COMPOSTA DE MEMBRANA/ELETRODO TENDO LINHAS DE PARTÍCULAS CATALITICAMENTE ATIVAS E UM MÉTODO PARA A PREPARAÇÃO DE UMA ESTRUTURA COMPOSTA APERFEIÇOADA DE MEMBRANA/ELETRODO

PublicadaInvention Patent

Application data

Number

PI8707206

Type

Invention Patent

Filing

12/28/1987

Publication

08/22/1989

Progress at the INPI

  1. Filing12/28/87
  2. Publication08/22/89
  3. Examination11/12/91
  4. Allowance
  5. Grant
  6. In force

Published on 08/22/1989, 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

J. M. (pessoa física)

R. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/22/1989

RPI 983

Pedido de patente depositado

#2.1

04/05/1988

RPI 911

Retificação

#15.3

04/05/1994

RPI 1218

Solicitação de exame técnico

#4.1

11/12/1991

RPI 1093

11.8

10/01/1991

RPI 1087

Arquivamento - Art. 33 da LPI

#11.1

09/24/1991

RPI 1086

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