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Official data from INPI

MEMBRANA PARA REJEICAO DE ION;PROCESSO PARA DESIONIZACAO DE UMA SOLUCAO CONTENDO MATERIAIS IONICOS SOLUBILIZADOS;E PROCESSO PARA PREPARACAO DE UMA MEMBRANA PARA REJEICAO DE ION

ArquivadaInvention Patent

Application data

Number

PI7802347

Type

Invention Patent

Filing

04/25/1977

Publication

-

Progress at the INPI

  1. Filing04/25/77
  2. Publication
  3. Abandoned
  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.

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Latest action published by the INPI: 08/09/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROHM & HAAS

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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).

Arquivamento - Art. 36 §1° da LPI

#11.2

08/09/1983

RPI 668

6.2

01/19/1982

RPI 587

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