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Official data from INPI

CONJUNTO DE DISCO MAGNÉTICO, CARTUCHO DE DISCO MAGNÉTICO E APARELHO PARA REGISTRAR E/OU REPRODUZIR SINAIS SOBRE UM DISCO MAGNÉTICO

ConcedidaInvention Patent

Application data

Number

PI8203305

Type

Invention Patent

Filing

06/04/1982

Publication

05/24/1983

Progress at the INPI

  1. Filing06/04/82
  2. Publication05/24/83
  3. Examination07/16/85
  4. Allowance08/12/86
  5. Grant04/28/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

JP

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Inventors

E. S. (pessoa física)

JP

Technical data

IPC Classification

No IPC classification.

Priority claims

JP

82831/81 · 06/05/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Exigência - art. 36 da LPI

#6.1

02/25/1986

RPI 801

Solicitação de exame técnico

#4.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

05/24/1983

RPI 657

Pedido de patente depositado

#2.1

07/27/1982

RPI 614

Carta-patente expirada

#21.1

Patente extinta em 04/06/97

07/01/2008

RPI 1956

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