Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2275299A | Spot lamp attachment | SH Thomson Manufacturing Co | Expired / Lapsed | 1940-10-17 | 1942-03-03 | 1960-10-17 | 0.0 yrs | 0 | |
| US2108328A | Automatic operator for casement windows and the like | SH Thomson Manufacturing Co | Expired / Lapsed | 1935-10-04 | 1938-02-15 | 1955-10-04 | 0.0 yrs | 0 | |
| US1989199A | Check valve | SH Thomson Manufacturing Co | Expired / Lapsed | 1933-10-30 | 1935-01-29 | 1953-10-30 | 0.0 yrs | 0 |