EDWARD F COLLADAY
EDWARD F CActive Patents
0
Total Holdings
12
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US1851495A | Radio broadcast distribution | Expired / Lapsed | 1927-08-05 | 1932-03-29 | 0 | Details |
| US1807510A | Silent wave radio transmission system | Expired / Lapsed | 1926-08-07 | 1931-05-26 | 0 | Details |
| US1798066A | Method of and means for receiving, recording, and reproduci… | Expired / Lapsed | 1926-11-27 | 1931-03-24 | 0 | Details |
| US1754881A | Radio trunk system | Expired / Lapsed | 1925-08-07 | 1930-04-15 | 0 | Details |
| US1754880A | Radio desk set | Expired / Lapsed | 1925-08-01 | 1930-04-15 | 0 | Details |
| US1754876A | Regional system of radio broadcast distribution | Expired / Lapsed | 1924-02-09 | 1930-04-15 | 0 | Details |
| US1706379A | Radio broadcast distributing system | Expired / Lapsed | 1925-11-25 | 1929-03-19 | 0 | Details |
| US1706378A | Trunking system for radiodistribution | Expired / Lapsed | 1925-01-06 | 1929-03-19 | 0 | Details |
| US1695180A | Secrecy system of radio broadcast distribution | Expired / Lapsed | 1925-10-30 | 1928-12-11 | 0 | Details |
| US1652092A | Polyphase broadcast distribution | Expired / Lapsed | 1926-11-27 | 1927-12-06 | 0 | Details |
| US1635153A | Subdivided service system of radio broadcast distribution | Expired / Lapsed | 1924-10-28 | 1927-07-05 | 0 | Details |
| US1580409A | Trunking system of radio distribution | Expired / Lapsed | 1925-02-14 | 1926-04-13 | 0 | Details |