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Official data from INPI

DIAFRAGMA MICROPOROSO ESTAVEL DE BAIXA TENSAO PARA CELULAS ELETROLITICAS

Em AnáliseInvention Patent

Application data

Number

PI8101558

Type

Invention Patent

Filing

03/17/1980

Publication

-

Progress at the INPI

  1. Filing03/17/80
  2. Publication
  3. Examination11/10/81
  4. Allowance
  5. Grant
  6. In force

Published on 11/10/1981, 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: 09/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOOKER CHEMICALS PLASTICS CORP

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

09/08/1987

RPI 881

14.4

11/01/1983

RPI 680

Pedido de certificado de adição de invenção

#5.1

04/27/1982

RPI 601

Solicitação de exame técnico

#4.1

11/10/1981

RPI 577

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