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Official data from INPI

SISTEMA DE ALTO-FALANTES EM UM GABINETE DE RECEPTOR DE TELEVISÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102566

Type

Invention Patent

Filing

06/19/1991

Publication

01/21/1992

Progress at the INPI

  1. Filing06/19/91
  2. Publication01/21/92
  3. Examination08/11/92
  4. Allowance06/30/98
  5. Grant11/24/98
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. 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

K. Y. (pessoa física)

JP

K. Y. (pessoa física)

JP

K. S. (pessoa física)

JP

M. S. (pessoa física)

JP

S. I. (pessoa física)

JP

Y. O. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

163341/1990 · 06/21/1990

JP

180053/1990 · 07/06/1990

JP

240847/1990 · 09/10/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 19/06/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

06/30/1998

RPI 1436

Solicitação de exame técnico

#4.1

08/11/1992

RPI 1132

Publicação do pedido de patente

#3.1

01/21/1992

RPI 1103

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