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Official data from INPI

APARELHO, E, PROCESSO PARA REPRODUZIR UM SINAL DE ÁUDIO

Em AnáliseInvention PatentPCT · JP1984000433

Application data

Number

PI8407062

Type

Invention Patent

Filing

09/10/1984

Publication

08/13/1985

PCT

JP1984000433

Progress at the INPI

  1. Filing09/10/84
  2. Publication08/13/85
  3. Examination06/30/87
  4. Allowance11/26/91
  5. Grant08/25/92
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

JP

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Inventors

A. S. (pessoa física)

JP

M. Y. (pessoa física)

JP

T. F. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

P58-166069 · 09/09/1983

JP

P58-234171 · 12/14/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/30/1987

RPI 871

Notificação de entrada na fase nacional - PCT

#1.3

08/13/1985

RPI 773

Carta-patente expirada

#21.1

Patente extinta em 10/09/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

08/25/1992

RPI 1134

Notificação para pagamento de retribuição

#13.1

04/14/1992

RPI 1115

Deferimento

#9.1

11/26/1991

RPI 1095

Exigência - art. 36 da LPI

#6.1

12/26/1990

RPI 1047

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