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Official data from INPI

APARELHO DE REGISTRO E REPRODUÇÃO MAGNÉTICA E SISTEMA DE COMANDO DE CARRETEL.

ConcedidaInvention Patent

Application data

Number

PI8206423

Type

Invention Patent

Filing

11/05/1982

Publication

09/27/1983

Progress at the INPI

  1. Filing11/05/82
  2. Publication09/27/83
  3. Examination01/03/84
  4. Allowance12/03/85
  5. Grant06/24/86
  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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hitachi, Ltd.

JP

See this company's full portfolio

Inventors

H. Y. (pessoa física)

M. O. (pessoa física)

M. Y. (pessoa física)

N. K. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

177159/81 · 11/06/1981

JP

185370/81 · 11/20/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/03/1985

RPI 789

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

01/03/1984

RPI 689

Publicação do pedido de patente

#3.1

09/27/1983

RPI 675

Carta-patente expirada

#21.1

Patente extinta em 05/11/97

07/01/2008

RPI 1956

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