Official data from INPI

SISTEMA DE APARELHOS TELEFONICOS INTERCOMUNICANTES

IndeferidaInvention Patent

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Application data

Number

PI8001757

Type

Invention Patent

Filing

03/23/1979

Publication

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Progress at the INPI

Under appeal

Filing03/23/79
Publication
Examination12/14/82
Refused09/12/89
Grant
In force

The application was refused by the INPI on 09/12/1989. The invention was never patented.

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Latest action published by the INPI: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INT STANDARD ELECTRIC CORP

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Inventors

L. F. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

09/12/1989

RPI 986

Conhecimento de parecer técnico

#7.1

11/29/1988

RPI 945

Solicitação de exame técnico

#4.1

12/14/1982

RPI 634

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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