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Official data from INPI

DISPOSITIVO DE PROTEÇÃO PARA LINHAS TELEFÔNICAS.

Em AnáliseInvention Patent

Application data

Number

PI8406378

Type

Invention Patent

Filing

12/12/1984

Publication

06/24/1986

Progress at the INPI

Under appeal
  1. Filing12/12/84
  2. Publication06/24/86
  3. Examination09/09/86
  4. Refused06/05/90
  5. Grant
  6. In force

The application was refused by the INPI on 06/05/1990. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Centro de Pesquisas de Energia Elétrica - CEPEL

RJ, BR

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Inventors

M. A. (pessoa física)

BR

S. F. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

09/05/1989

RPI 985

Solicitação de exame técnico

#4.1

09/09/1986

RPI 829

Publicação do pedido de patente

#3.1

06/24/1986

RPI 818

Pedido de patente depositado

#2.1

02/26/1985

RPI 749

Indeferimento

#9.2

06/05/1990

RPI 1021

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