Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US1937139A | Sign | FED ELECTRIC CO | Expired / Lapsed | 1933-01-19 | 1933-11-28 | 1953-01-19 | 0.0 yrs | 0 | |
| US1425305A | Friction drive coupling | FED ELECTRIC CO | Expired / Lapsed | 1920-06-03 | 1922-08-08 | 1940-06-03 | 0.0 yrs | 0 |