Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2548878A | Thermostatic valve having sealing diaphragm and supporting means therefor | Detroit Lubricator Co | Expired / Lapsed | 1948-12-30 | 1951-04-17 | 1968-12-30 | 0.0 yrs | 0 | |
| US2208181A | Vacuum air valve | Detroit Lubricator Co | Expired / Lapsed | 1936-07-20 | 1940-07-16 | 1956-07-20 | 0.0 yrs | 0 | |
| US1661131A | Expansible-collapsible element | Detroit Lubricator Co | Expired / Lapsed | 1926-04-29 | 1928-02-28 | 1946-04-29 | 0.0 yrs | 0 |