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Official data from INPI

CASSETE DE FITA.

ConcedidaInvention Patent

Application data

Number

PI8306778

Type

Invention Patent

Filing

12/09/1983

Publication

07/17/1984

Progress at the INPI

  1. Filing12/09/83
  2. Publication07/17/84
  3. Examination10/23/84
  4. Allowance02/04/86
  5. Grant10/29/86
  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: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Victor Company Of Japan, Limited.

JP

Victor Company Of Japan, Ltd

JP

See this company's full portfolio

Inventors

U. H. (pessoa física)

W. Y. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

188350/82 · 12/13/1982

JP

216536/82 · 12/10/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1986

RPI 836

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/04/1986

RPI 798

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

10/23/1984

RPI 731

Publicação do pedido de patente

#3.1

07/17/1984

RPI 717

Pedido de patente depositado

#2.1

02/21/1984

RPI 696

Carta-patente expirada

#21.1

Patente extinta em 09/12/98

07/01/2008

RPI 1956

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