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Official data from INPI

APERFEIÇOAMENTO EM DISCO DE VIDEOREGISTRO E APARELHO PARA RECUPERAR INFORMAÇÕES REGISTRADAS SOBRE UM DISCO DE VIDEOREGISTRO.

ConcedidaInvention Patent

Application data

Number

PI8005255

Type

Invention Patent

Filing

08/20/1980

Publication

-

Progress at the INPI

  1. Filing08/20/80
  2. Publication
  3. Examination01/11/83
  4. Allowance02/21/84
  5. Grant08/28/84
  6. In force08/20/00

The patent was granted on 08/28/1984 and is in force until 08/20/2000. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:08/20/2000

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Latest action published by the INPI: 08/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

Inventors

D. W. (pessoa física)

Technical data

Priority claims

US

068,530 · 08/22/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/12/1984

RPI 712

Deferimento

#9.1

02/21/1984

RPI 696

Exigência - art. 36 da LPI

#6.1

08/02/1983

RPI 667

Solicitação de exame técnico

#4.1

01/11/1983

RPI 638

22.2

06/17/1997

RPI 1385

Carta-patente expirada

#21.1

09/26/1995

RPI 1295

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