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Official data from INPI

APERFEIÇOAMENTOS EM CIRCUITOS DE SINALIZAÇÃO E + M.

ConcedidaInvention Patent

Application data

Number

PI8008562

Type

Invention Patent

Filing

12/30/1980

Publication

11/03/1981

Progress at the INPI

  1. Filing12/30/80
  2. Publication11/03/81
  3. Examination08/02/83
  4. Allowance10/01/85
  5. Grant07/29/86
  6. Terminated02/04/92

The patent was granted on 07/29/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

A. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/29/1986

RPI 823

Deferimento

#9.1

10/01/1985

RPI 780

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

Conhecimento de parecer técnico

#7.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Publicação antecipada

#3.2

11/03/1981

RPI 576

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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