Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US1848031A | Valve | SPENCER THERMOSTAT Co | Expired / Lapsed | 1930-05-31 | 1932-03-01 | 1950-05-31 | 0.0 yrs | 0 | |
| US1845998A | Thermostat | SPENCER THERMOSTAT Co | Expired / Lapsed | 1926-02-13 | 1932-02-16 | 1946-02-13 | 0.0 yrs | 0 | |
| US1678407A | Thermostat | SPENCER THERMOSTAT Co | Expired / Lapsed | 1923-11-10 | 1928-07-24 | 1943-11-10 | 0.0 yrs | 0 |