Official data from INPI

ARRANJO DE SINALIZACAO DE RESPOSTA PARA UM SISTEMA SELETOR DE TOM DE AUDIO;E APARELHO SELETOR PARA USO EM UMA ESTACAO REMOTA

ArquivadaInvention Patent

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Application data

Number

PI7704757

Type

Invention Patent

Filing

07/26/1976

Publication

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Progress at the INPI

Filing07/26/76
Publication
Examination
Allowance
Abandoned
In force

The application was allowed but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

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Latest action published by the INPI: 12/21/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WESTINGHOUSE AIR BRAKE CO

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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).

Arquivamento - Art. 38 §2° da LPI

#11.4

12/21/1982

RPI 635

Notificação para pagamento de retribuição

#13.1

11/10/1981

RPI 577

From the same holder

CAIXA DE ENGRENAGEM DE TRACAO APERFEICOAMENTO EM APARELHAGEM DE FREIO DE VEICULO CONTROLADO POR PRESSAO DE FLUIDO APERFEICOAMENTO EM MECANISMO DE FREIO DE VEICULO CONTROLADO A PRESSAO DE FLUIDO DISPOSITIVO DE VALVULA DE EMERGENCIA APERFEICOAMENTOS EM DISPOSITIVOS DE CILINDRO DE FREIO DISPOSITIVO DE VALVULA DE EMERGENCIA PARA USO EM UMA APARELHAGEM DE FREIO TORNEIRA ANGULAR DE MACHO ESFERICO BOCAL DE MANGUEIRA APERFEICOADO

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