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Official data from INPI

SISTEMA DE GRAVACAO MAGNETICA

ConcedidaInvention Patent

Application data

Number

PI7806712

Type

Invention Patent

Filing

10/31/1977

Publication

-

Progress at the INPI

  1. Filing10/31/77
  2. Publication
  3. Examination
  4. Allowance11/16/82
  5. Grant07/26/83
  6. Terminated01/28/92

The patent was granted on 07/26/1983 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: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BURROUGHS CORP

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Inventors

C. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

03/22/1983

RPI 648

Deferimento

#9.1

11/16/1982

RPI 630

Exigência - art. 36 da LPI

#6.1

03/30/1982

RPI 597

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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