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Official data from INPI

SISTEMA DE EXTENSAO EXTERNA PARA LINHAS TELEFONICAS

IndeferidaInvention Patent

Application data

Number

PI8401769

Type

Invention Patent

Filing

04/12/1984

Publication

11/19/1985

Progress at the INPI

Under appeal
  1. Filing04/12/84
  2. Publication11/19/85
  3. Examination10/21/86
  4. Refused05/24/88
  5. Grant
  6. In force

The application was refused by the INPI on 05/24/1988. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CEARA TELECOM TELECEARA SA [BR]

Inventors

B. M. (pessoa física)

L. F. (pessoa física)

M. B. (pessoa física)

P. G. (pessoa física)

Pessoa física

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

05/24/1988

RPI 918

14.7

01/21/1987

RPI 848

Solicitação de exame técnico

#4.1

10/21/1986

RPI 835

Solicitação de exame não realizada

#4.2

07/01/1986

RPI 819

Publicação do pedido de patente

#3.1

11/19/1985

RPI 787

Pedido de patente depositado

#2.1

06/04/1985

RPI 763

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