DUOFONE

○ Dead · Expired

U.S. federal trademark · Serial No. 73101700 · Reg. No. 1090022

Mark

DUOFONE

Status

Expired

Serial Number

73101700

Registration No.

1090022

Filing Date

September 30, 1976

Registration Date

April 25, 1978

Class(es)

Class 009

Owner

03 · FORT WORTH, TX, US

ELECTROMECHANICAL TELEPHONE ANSWERING INSTRUMENTS AND ELECTRONIC TELEPHONE AMPLIFIERS

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Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.