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Official data from INPI

UM MÉTODO PARA A FORMAÇÃO DE UM CONJUNTO DE UMA MEMBRANA PERMEÁVEL A ÍONS, ELETRODO, E COLETOR DE CORRENTE

PublicadaInvention Patent

Application data

Number

PI8705141

Type

Invention Patent

Filing

09/03/1987

Publication

04/11/1989

Progress at the INPI

  1. Filing09/03/87
  2. Publication04/11/89
  3. Abandoned05/21/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

R. D. (pessoa física)

US

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/11/1989

RPI 964

Pedido de patente depositado

#2.1

02/17/1988

RPI 904

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C25B 11/20; H01M 4/88.

03/27/2018

RPI 2464

Arquivamento - Art. 36 §1° da LPI

#11.2

03/14/1995

RPI 1267

Exigência - art. 36 da LPI

#6.1

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

05/21/1991

RPI 1068

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