Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US1912242A | Potentiometer device for testing and calibrating meters | THWING INSTR Co | Expired / Lapsed | 1929-11-26 | 1933-05-30 | 1949-11-26 | 0.0 yrs | 0 | |
| US1883444A | Temperature indicating means | THWING INSTR Co | Expired / Lapsed | 1926-11-26 | 1932-10-18 | 1946-11-26 | 0.0 yrs | 0 | |
| US1734837A | Pyrometer | THWING INSTR Co | Expired / Lapsed | 1925-09-03 | 1929-11-05 | 1945-09-03 | 0.0 yrs | 0 | |
| US1730308A | Temperature-indicating means | THWING INSTR Co | Expired / Lapsed | 1925-09-03 | 1929-10-01 | 1945-09-03 | 0.0 yrs | 0 |