Official data from INPI

MAQUINA DE CORRENTE CONTINUA DE COMUTACAO TIRISTORIZADA

Em AnáliseInvention Patent

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Application data

Number

PI8401703

Type

Invention Patent

Filing

04/12/1984

Publication

10/16/1984

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Progress at the INPI

Under appeal

Filing04/12/84
Publication10/16/84
Examination01/15/85
Refused08/07/90
Grant
In force

The application was refused by the INPI on 08/07/1990. The invention was never patented.

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Latest action published by the INPI: 01/15/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HELIODINAMICA SA [BR]

Inventors

B. G. (pessoa física)

N. K. (pessoa física)

Technical data

IPC Classification

H02M 7/25

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/15/1985

RPI 743

Publicação antecipada

#3.2

10/16/1984

RPI 730

Pedido de patente depositado

#2.1

06/26/1984

RPI 714

Indeferimento

#9.2

08/07/1990

RPI 1027

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