Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2327663A | Heating and ventilating apparatus | Herman Nelson Co | Expired / Lapsed | 1940-12-06 | 1943-08-24 | 1960-12-06 | 0.0 yrs | 0 | |
| US1459927A | Fan | Herman Nelson Co | Expired / Lapsed | 1921-05-09 | 1923-06-26 | 1941-05-09 | 0.0 yrs | 0 |