USPTO serial 72309163
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This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.
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WHITE PLAINS, NY
| Class | Description | Status | First use |
|---|---|---|---|
| 021 | PORTABLE SELF-CONTAINED DEVICES CONSISTING OF A TWELVE-BUTTON PUSHBUTTON TELEPHONE DIAL UNIT CONTAINING A SMALL ELECTRIC TRANSISTOR BATTERY, CONNECTED BY A CABLE AND PLUG TO A SOUNDGENERATING UNIT SIMILAR TO A TELEPHONE RECEIVER EARPIECE, WHERE THE DIAL UNIT GENERATES THE SAME MULTI-FREQUENCY TONES USED IN TELEPHONE TONE-DIALING SYSTEMS, AND THE SOUND UNIT FEEDS THESE SOUNDS INTO THE MOUTHPIECE OF AN ORDINARY TELEPHONE HANDSET, SUCH ACOUSTIC COUPLING TRANSMITTING THE TONE-PAIRS TELEPHONICALLY TO A DISTANT TELEPHONE TO ACTUATE A DATA-PROCESSING DEVICE THERE, THUS TRANSMITTING INTELLIGENCE FROM THE LOCATION AT WHICH THE PORTABLE DEVICE IS USED | EXPIRED | Oct 4, 1968 |
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
| Date | Code | Event | What it means |
|---|---|---|---|
| Nov 4, 1992 | EXRG | EXPIRED SEC. 9 | — |