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Official data from INPI

APARELHO DE GRAVAÇÃO MAGNÉTICA PARA VÍDEO E DOIS TIPOS DE SINAIS DE AUDIO.

PublicadaInvention Patent

Application data

Number

PI8802398

Type

Invention Patent

Filing

05/11/1988

Publication

12/13/1988

Progress at the INPI

  1. Filing05/11/88
  2. Publication12/13/88
  3. Examination06/12/90
  4. Allowance02/06/96
  5. Grant03/25/97
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Matsushita Electric Industrial Co., Ltd

JP

See this company's full portfolio

Inventors

S. H. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

62-117367 · 05/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/13/1988

RPI 947

Pedido de patente depositado

#2.1

10/25/1988

RPI 940

Carta-patente expirada

#21.1

Patente extinta em 11/05/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

03/25/1997

RPI 1373

Notificação para pagamento de retribuição

#13.1

07/16/1996

RPI 1337

Deferimento

#9.1

02/06/1996

RPI 1314

Exigência - art. 36 da LPI

#6.1

05/09/1995

RPI 1275

Solicitação de exame técnico

#4.1

06/12/1990

RPI 1022

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