Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US1586680A | Typewriting machine | Underwood Typewriter Co | Expired / Lapsed | 1923-02-14 | 1926-06-01 | 1943-02-14 | 0.0 yrs | 0 | |
| US1475715A | Typing-speed recorder | Underwood Typewriter Co | Expired / Lapsed | 1921-01-25 | 1923-11-27 | 1941-01-25 | 0.0 yrs | 0 | |
| US1247151A | Automatic type-writer operator. | Underwood Typewriter Co | Expired / Lapsed | 1916-05-24 | 1917-11-20 | 1936-05-24 | 0.0 yrs | 0 | |
| US1080028A | Type-writing machine. | Underwood Typewriter Co | Expired / Lapsed | 1911-08-18 | 1913-12-02 | 1931-08-18 | 0.0 yrs | 0 | |
| US1063816A | Soldering-clamp. | Underwood Typewriter Co | Expired / Lapsed | 1911-01-12 | 1913-06-03 | 1931-01-12 | 0.0 yrs | 0 |