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Official data from INPI

Aparelho para reproduzir e gravar informação

Em AnáliseInvention Patent

Application data

Number

PI8703843

Type

Invention Patent

Filing

07/23/1987

Publication

03/29/1988

Progress at the INPI

  1. Filing07/23/87
  2. Publication03/29/88
  3. Examination06/07/88
  4. Allowance01/03/95
  5. Grant06/27/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 06/07/1988. 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

J. Y. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

SHO 61-175913 · 07/25/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/07/1988

RPI 920

Publicação do pedido de patente

#3.1

03/29/1988

RPI 910

Pedido de patente depositado

#2.1

10/13/1987

RPI 886

Carta-patente expirada

#21.1

Patente extinta em 23/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/27/1995

RPI 1282

Deferimento

#9.1

01/03/1995

RPI 1257

Exigência - art. 36 da LPI

#6.1

07/05/1994

RPI 1231

6.2

09/28/1993

RPI 1191

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