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Official data from INPI

APERFEIÇOAMENTOS EM SISTEMA DE TELECOMUNICAÇÕES

Em AnáliseInvention Patent

Application data

Number

PI8002335

Type

Invention Patent

Filing

04/15/1980

Publication

-

Progress at the INPI

  1. Filing04/15/80
  2. Publication
  3. Examination
  4. Refused08/28/84
  5. Grant
  6. In force

The application was refused on 08/28/1984 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais - USIMINAS (Grupo Siderbrás)

MG, BR

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Inventors

A. E. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

08/28/1984

RPI 723

Petição de recurso

#12.2

12/20/1983

RPI 687

Indeferimento

#9.2

08/23/1983

RPI 670

Conhecimento de parecer técnico

#7.1

02/16/1983

RPI 643

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