Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2267823A | Scanning device for television | MARKIA Corp | Expired / Lapsed | 1936-12-10 | 1941-12-30 | 1956-12-10 | 0.0 yrs | 0 | |
| US2211926A | Television-facsimile system | MARKIA Corp | Expired / Lapsed | 1936-11-10 | 1940-08-20 | 1956-11-10 | 0.0 yrs | 0 | |
| US2203352A | Method and apparatus for producing echo effects | MARKIA Corp | Expired / Lapsed | 1936-12-18 | 1940-06-04 | 1956-12-18 | 0.0 yrs | 0 | |
| US2155126A | Sound and television receiving system | MARKIA Corp | Expired / Lapsed | 1936-08-12 | 1939-04-18 | 1956-08-12 | 0.0 yrs | 0 |