U S Holding Co Inc
U S HoldinActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4000416A | Multi-core optical communications fiber | Expired / Lapsed | 1975-07-11 | 1976-12-28 | 19 | Details |
| US3860764A | Electronic tone generator | Expired / Lapsed | 1973-01-12 | 1975-01-14 | 12 | Details |
| US3710031A | Multi frequency receiver | Expired / Lapsed | 1970-12-23 | 1973-01-09 | 11 | Details |
| US3646453A | Error detector circuit | Expired / Lapsed | 1969-12-08 | 1972-02-29 | 6 | Details |
| US3588357A | Automatic remote meter reading over telephone line | Expired / Lapsed | 1969-06-19 | 1971-06-28 | 0 | Details |
| US3555424A | Means for allocating radio link channels in mobile telephon… | Expired / Lapsed | 1967-06-21 | 1971-01-12 | 0 | Details |
| US3532832A | Message waiting lamp | Expired / Lapsed | 1967-06-09 | 1970-10-06 | 0 | Details |
| US3517315A | Mobile telephone transmitter selector circuit | Expired / Lapsed | 1967-06-21 | 1970-06-23 | 0 | Details |
| US3515992A | Automatic alarm detector | Expired / Lapsed | 1967-06-09 | 1970-06-02 | 0 | Details |