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Official data from INPI

CIRCUITO DE REDUÇÃO DE RUÍDO PARA SINAL DE VÍDEO

Em AnáliseInvention Patent
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Application data

Number

PI8401618

Type

Invention Patent

Filing

04/06/1984

Publication

11/13/1984
View on INPI

Progress at the INPI

  1. Filing04/06/84
  2. Publication11/13/84
  3. Examination03/05/85
  4. Allowance05/16/89
  5. Grant02/06/90
  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.

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Latest action published by the INPI: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Victor Company Of Japan, Ltd

JP

See this company's full portfolio

Inventors

I. N. (pessoa física)

JP

S. N. (pessoa física)

JP

Technical data

IPC Classification

H04N 5/213

Priority claims

JP

116851/83 · 07/27/1983

JP

61295/83 · 04/07/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

09/12/1989

RPI 986

Deferimento

#9.1

05/16/1989

RPI 969

Republicação - classificação IPC

#15.11

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

11/01/1988

RPI 941

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Carta-patente expirada

#21.1

Patente extinta em 06/04/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

02/06/1990

RPI 1005

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