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Official data from INPI

FILTRO TRANSVERSO COM PELO MENOS UM REGISTRO DE AVANCO ANALOGICO E PROCESSO PARA O SEU FUNCIONAMENTO

Em AnáliseInvention Patent

Application data

Number

PI7706450

Type

Invention Patent

Filing

12/23/1976

Publication

-

Progress at the INPI

  1. Filing12/23/76
  2. Publication
  3. Examination
  4. Allowance02/16/82
  5. Grant
  6. Terminated12/15/87

The patent was granted 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SIEMENS AG

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Notificação para pagamento de retribuição

#13.1

06/08/1982

RPI 607

Deferimento

#9.1

02/16/1982

RPI 591

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