MARKIA Corp
MARKIA CorActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2267823A | Scanning device for television | Expired / Lapsed | 1936-12-10 | 1941-12-30 | 0 | Details |
| US2261848A | Television | Expired / Lapsed | 1936-04-01 | 1941-11-04 | 0 | Details |
| US2211926A | Television-facsimile system | Expired / Lapsed | 1936-11-10 | 1940-08-20 | 0 | Details |
| US2203352A | Method and apparatus for producing echo effects | Expired / Lapsed | 1936-12-18 | 1940-06-04 | 0 | Details |
| US2155126A | Sound and television receiving system | Expired / Lapsed | 1936-08-12 | 1939-04-18 | 0 | Details |
| US2132783A | Electron discharge device | Expired / Lapsed | 1936-04-24 | 1938-10-11 | 0 | Details |