Trademark Overview
On Wednesday, May 25, 1927, a trademark application was filed for D with the United States Patent and Trademark Office. The USPTO has given the D trademark a serial number of 71249514. The federal status of this trademark filing is EXPIRED as of Tuesday, November 3, 1992. This trademark is owned by DICTOGRAPH PRODUCTS CORPORATION. The D trademark is filed in the Computer & Software Products & Electrical & Scientific Products category with the following description:
ACOUSTICONS, CHURCH ACOUSTICONS, ACOUSTICON BATTERIES;INTERIOR COMMUNICATING TELEPHONE SYSTEMS FOR OFFICES, BANKS, FACTORIES, ETC.; INTERIOR TELEPHONE SYSTEMS FOR APARTMENT BUILDINGS PROVIDING COMMUNICATION BETWEEN VESTIBULE, APARTMENTS, JANITOR, TRADESMEN, OR OTHER ESSENTIAL POINTS; LOUD-SPEAKING PAGING OR ANNOUNCING SYSTEMS FOR LOCATING DOCTORS IN A HOSPITAL, ANNOUNCING SYSTEMS EMPLOYING LOUD SPEAKERS OPERATED FROM CENTRAL TRANSMITTING STATION, LOUD-SPEAKING LIMOUSINE TELEPHONES,RADIO LOUD SPEAKERS, RADIO RECEIVING SETS, SWITCHES FOR RADIO RECEIVING SETS WITH ONE OR MORE LOUD SPEAKERS, RADIO LOUDSPEAKING RECEIVER UNITS FOR ATTACHMENT TO SOUNDING BOARDS OF PIANOS; LISTENING DEVICES EMPLOYING SUPERSENSITIVE TRANSMITTERS AND HEADSET RECEIVERS FOR USE BY DETECTIVE AGENCIES, POLICE DEPARTMENTS, ETC.; AND SENSITIVE TRANSMITTERS USED AS ESSENTIAL PARTS OF BURGLAR ALARMS AND VAULT PROTECTION SYSTEMS WHOSE OPERATION IS CONTROLLED BY SOUND WAVES
