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Official data from INPI

DISPOSICAO DE CIRCUITO PARA UMA INSTALACAO TELEFONICA COM MEMORIA PARA OS NUMEROS DE CHAMADA DE TELEFONES QUE CHAMAM EM VAO

Em AnáliseInvention Patent

Application data

Number

PI7900891

Type

Invention Patent

Filing

12/06/1978

Publication

-

Progress at the INPI

  1. Filing12/06/78
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant12/27/83
  6. Terminated05/17/88

The patent was granted on 12/27/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SIEMENS AG

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Inventors

E. H. (pessoa física)

L. H. (pessoa física)

M. R. (pessoa física)

W. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

16.3

06/19/1984

RPI 713

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

Exigência - art. 36 da LPI

#6.1

08/31/1982

RPI 619

Exigência - art. 36 da LPI

#6.1

03/30/1982

RPI 597

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