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Official data from INPI

PROCESSO DE PREPARACAO DE UM CONJUNTO DE CATADO-DIAFRAGMA PARA UMA CELULA ELETROLITICA;UNIDADE DE CATODO-DIAFRAGMA;E PROCESSO DE OPERACAO DE UMA CELULA ELETROLITICA

ArquivadaInvention Patent

Application data

Number

PI8103188

Type

Invention Patent

Filing

05/30/1980

Publication

02/09/1982

Progress at the INPI

  1. Filing05/30/80
  2. Publication02/09/82
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 05/30/1980 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/12/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PPG INDUSTRIES INC

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Inventors

R. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

03/12/1985

RPI 751

Publicação do pedido de patente

#3.1

02/09/1982

RPI 590

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