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Official data from INPI

PROCESSO DE REGISTRO SONORO SOBRE FITA MAGNETICA AFIXADA A UM CARTAO

Em AnáliseInvention Patent

Application data

Number

PI7900809

Type

Invention Patent

Filing

02/10/1978

Publication

-

Progress at the INPI

  1. Filing02/10/78
  2. Publication
  3. Examination10/13/81
  4. Allowance06/22/82
  5. Grant
  6. Terminated09/25/90

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: 10/05/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SONY CORP

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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).

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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