Official data from INPI

SISTEMA DE COMUNICAÇÃO TELEFÔNICO GRATUITO.

IndeferidaInvention Patent

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Application data

Number

PI8906253

Type

Invention Patent

Filing

11/30/1989

Publication

01/22/1991

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Progress at the INPI

Under appeal

Filing11/30/89
Publication01/22/91
Examination04/27/93
Refused04/05/94
Grant
In force

The application was refused by the INPI on 04/05/1994. The invention was never patented.

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Latest action published by the INPI: 04/05/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. M. (pessoa física)

SP, BR

Inventors

J. M. (pessoa física)

Technical data

IPC Classification

H04M 3/42

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

04/05/1994

RPI 1218

Solicitação de exame técnico

#4.1

04/27/1993

RPI 1169

Publicação antecipada

#3.2

01/22/1991

RPI 1051

Pedido de patente depositado

#2.1

03/06/1990

RPI 1008

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