Official data from INPI

MÉTODO PARA CONTROLAR O VÍDEO E ÁUDIO DE UM TELEVISOR MEDIANTE O EMPREGO DE UM CÓDIGO

PublicadaInvention Patent

Talk to an expert

Application data

Number

PI8803209

Type

Invention Patent

Filing

06/29/1988

Publication

01/17/1989

View on INPI

Progress at the INPI

Filing06/29/88
Publication01/17/89
Examination03/26/91
Allowance10/03/00
Grant02/06/01
Expired12/11/12

The letters patent expired on 12/11/2012: 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: 01/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Goldstar Co., Ltd.

See this company's full portfolio

Inventors

S. R. (pessoa física)

Technical data

IPC Classification

H04L 13/04 H04N 1/32 H04N 5/00

Priority claims

6719/1987 · 06/30/1987

7657/1987 · 07/15/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/17/1989

RPI 952

Pedido de patente depositado

#2.1

11/29/1988

RPI 945

Carta-patente expirada

#21.1

Patente extinta em 06/02/2011

12/11/2012

RPI 2188

Concessão da patente

#16.1

02/06/2001

RPI 1570

Deferimento

#9.1

10/03/2000

RPI 1552

Pedido de certificado de adição de invenção

#5.1

08/06/1991

RPI 1079

Solicitação de exame técnico

#4.1

03/26/1991

RPI 1060

Same category

MICROFONE SEM FIO DOTADO DE CÂMARA DE RESSONÂNCIA.PI9917905 PI9917904 PI9917902 PI9917898 PI9917895 PI9917684 PI9917655

Explore category

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.