Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2284161A | Air conditioning apparatus | JOHN J NESBITT Inc | Expired / Lapsed | 1939-06-09 | 1942-05-26 | 1959-06-09 | 0.0 yrs | 0 | |
| US1919625A | Automatic fire protection damper | JOHN J NESBITT Inc | Expired / Lapsed | 1930-11-01 | 1933-07-25 | 1950-11-01 | 0.0 yrs | 0 | |
| US1898821A | Fire protection mechanism for heating and ventilating units | JOHN J NESBITT Inc | Expired / Lapsed | 1930-08-02 | 1933-02-21 | 1950-08-02 | 0.0 yrs | 0 |