Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2481659A | Means for and method of synchronizing alternating electric voltages | Radio Patents Corp | Expired / Lapsed | 1947-09-11 | 1949-09-13 | 1967-09-11 | 0.0 yrs | 0 | |
| US2262936A | Electrocardiograph | Radio Patents Corp | Expired / Lapsed | 1937-11-24 | 1941-11-18 | 1957-11-24 | 0.0 yrs | 0 | |
| US2262406A | Frequency modulation system | Radio Patents Corp | Expired / Lapsed | 1940-11-26 | 1941-11-11 | 1960-11-26 | 0.0 yrs | 0 | |
| US2166991A | Direction finding system | Radio Patents Corp | Expired / Lapsed | 1937-11-24 | 1939-07-25 | 1957-11-24 | 0.0 yrs | 0 | |
| US1732393A | Electrostatic phonograph pick-up | Radio Patents Corp | Expired / Lapsed | 1928-04-06 | 1929-10-22 | 1948-04-06 | 0.0 yrs | 0 |