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Official data from INPI

DISPOSICAO DE CIRCUITO PARA RASTREAMENTO DOS ELEMENTOS DE SINAL DOS SINAIS EM PONTOS FIXOS QUAISQUER,SOBRETUDO PARA A SUPRESSAO DA DISTORCAO DE SINAIS DE TELEIMPRESSORAS

Em AnáliseInvention Patent

Application data

Number

PI7806540

Type

Invention Patent

Filing

02/28/1978

Publication

-

Progress at the INPI

  1. Filing02/28/78
  2. Publication
  3. Examination
  4. Allowance08/10/82
  5. Grant02/22/83
  6. Terminated10/03/89

The patent was granted on 02/22/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SIEMENS AG

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Inventors

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Concessão da patente

#16.1

02/22/1983

RPI 644

Deferimento

#9.1

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

02/09/1982

RPI 590

Pedido de certificado de adição de invenção

#5.1

10/27/1981

RPI 575

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