Underwood Typewriter Co
UnderwoodActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US1586680A | Typewriting machine | Expired / Lapsed | 1923-02-14 | 1926-06-01 | 0 | Details |
| US1475715A | Typing-speed recorder | Expired / Lapsed | 1921-01-25 | 1923-11-27 | 0 | Details |
| US1286186A | Variable escapement. | Expired / Lapsed | 1916-02-03 | 1918-11-26 | 0 | Details |
| US1247151A | Automatic type-writer operator. | Expired / Lapsed | 1916-05-24 | 1917-11-20 | 0 | Details |
| US1212784A | Type-writing machine. | Expired / Lapsed | 1915-05-14 | 1917-01-16 | 0 | Details |
| US1188875A | Type-writing machine. | Expired / Lapsed | 1913-01-13 | 1916-06-27 | 0 | Details |
| US1100795A | Type-writing machine. | Expired / Lapsed | 1911-05-03 | 1914-06-23 | 0 | Details |
| US1080028A | Type-writing machine. | Expired / Lapsed | 1911-08-18 | 1913-12-02 | 0 | Details |
| US1063816A | Soldering-clamp. | Expired / Lapsed | 1911-01-12 | 1913-06-03 | 0 | Details |