Official data from INPI

DISTRIBUÍDOR SÍNCRONO DE MENSAGENS

Em AnáliseInvention Patent

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Application data

Number

PI8200438

Type

Invention Patent

Filing

01/27/1982

Publication

04/05/1983

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Progress at the INPI

Filing01/27/82
Publication04/05/83
Examination07/19/83
Refused07/01/86
Grant
In force

The application was refused on 07/01/1986 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/01/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telecomunicações de São Paulo S/A Telesp

SP, BR

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Inventors

L. N. (pessoa física)

L. S. (pessoa física)

L. U. (pessoa física)

N. T. (pessoa física)

R. S. (pessoa física)

R. Y. (pessoa física)

Technical data

IPC Classification

H04M 11/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

07/01/1986

RPI 819

Petição de recurso

#12.2

07/16/1985

RPI 769

Indeferimento

#9.2

04/02/1985

RPI 754

Solicitação de exame técnico

#4.1

07/19/1983

RPI 665

Publicação antecipada

#3.2

04/05/1983

RPI 650

Pedido de patente depositado

#2.1

03/22/1983

RPI 648

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