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Official data from INPI

APARELHO PARA REPRODUZIR UM REGISTRO EM FORMA DE DISCO

ConcedidaInvention Patent

Application data

Number

PI8106097

Type

Invention Patent

Filing

09/24/1980

Publication

06/08/1982

Progress at the INPI

  1. Filing09/24/80
  2. Publication06/08/82
  3. Examination08/28/84
  4. Allowance03/05/85
  5. Grant10/01/85
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/01/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SONY CORP

See this company's full portfolio

Inventors

H. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/01/1985

RPI 780

Notificação para pagamento de retribuição

#13.1

06/25/1985

RPI 766

Deferimento

#9.1

03/05/1985

RPI 750

Solicitação de exame técnico

#4.1

08/28/1984

RPI 723

Publicação do pedido de patente

#3.1

06/08/1982

RPI 607

Pedido de patente depositado

#2.1

11/10/1981

RPI 577

Carta-patente expirada

#21.1

Patente extinta em 23/09/96

08/19/2008

RPI 1963

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