Official data from INPI

PROCESSO APERFEICOADO PARA REDUCAO ELETROLITICA DE UM METAL E CELULA ELETROLITICA PARA REDUCAO ELETROLITICA DE UM METAL

IndeferidaInvention Patent

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Application data

Number

PI8109035

Type

Invention Patent

Filing

07/06/1981

Publication

08/23/1983

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Progress at the INPI

Under appeal

Filing07/06/81
Publication08/23/83
Examination12/20/83
Refused08/19/86
Grant
In force

The application was refused by the INPI on 08/19/1986. The invention was never patented.

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Latest action published by the INPI: 08/19/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SUPERIOR GRAPHITE CO [US]

Inventors

G. [. (pessoa física)

Technical data

IPC Classification

C25C 3/06 C25C 3/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

08/19/1986

RPI 826

Conhecimento de parecer técnico

#7.1

09/04/1984

RPI 724

Solicitação de exame técnico

#4.1

12/20/1983

RPI 687

Notificação de entrada na fase nacional - PCT

#1.3

08/23/1983

RPI 670

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