Official data from INPI

SISTEMA DE SINALIZACAO

Em AnáliseInvention Patent

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Application data

Number

PI8002674

Type

Invention Patent

Filing

05/04/1979

Publication

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Progress at the INPI

Filing05/04/79
Publication
Examination05/18/82
Refused02/16/93
Grant
In force

The application was refused on 02/16/1993 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INT STANDARD ELECTRIC CORP

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Petição de recurso

#12.2

05/16/1989

RPI 969

Indeferimento

#9.2

01/03/1989

RPI 950

14.1

10/04/1988

RPI 937

Solicitação de exame técnico

#4.1

05/18/1982

RPI 604

111

02/16/1993

RPI 1159

From the same holder

METODOS E TECNICAS PARA APLICACAO DE SUBSTANCIAS FOSFORECENTES PARTICULARMENTE ADAPTADOS PARA TELAS FORFORESCENTES GRAVADS CONVERSOR DIGITAL DE DOIS PARA QUATRO FIOS PARA SINAIS TOTALMENTE DUPLEX IMPEDANCIA DE TERMINO DE LINHA DE EQUILIBRIO AUTOMATICO DIGITALMENTE SINTETIZADA APARELHO COMPACTO TELEFONICO EMPREGANDO COMUTADORES DE SUPERVISAO ACIONADOS ESTRUTURA DE REGISTRO DE SILICONE MOS LSI COMUTADOR SEMICONDUTOR DE ALTA VOLTAGEM EQUIPAMENTO PARA MEDDA DE NIVEL E RUIDO EM CANAIS PCM ACOPLADOR DICROICO DE FIBRA APERFEICOADA

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