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Official data from INPI

SISTEMA DE INFORMAÇÃO DE NÚMEROS ALTERADOS.

Em AnáliseInvention Patent

Application data

Number

PI8802697

Type

Invention Patent

Filing

06/03/1988

Publication

09/06/1988

Progress at the INPI

Under appeal
  1. Filing06/03/88
  2. Publication09/06/88
  3. Examination11/08/88
  4. Refused02/22/94
  5. Grant
  6. In force

The application was refused by the INPI on 02/22/1994. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 11/08/1988. 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

D. S. (pessoa física)

BR

E. Y. (pessoa física)

BR

L. F. (pessoa física)

BR

M. S. (pessoa física)

BR

R. S. (pessoa física)

BR

R. Y. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/08/1988

RPI 942

Publicação antecipada

#3.2

09/06/1988

RPI 933

Pedido de patente depositado

#2.1

08/30/1988

RPI 932

Indeferimento

#9.2

02/22/1994

RPI 1212

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