Parks Cramer Co
Parks CramActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2663500A | Humidifying system and apparatus | Expired / Lapsed | 1951-07-21 | 1953-12-22 | 0 | Details |
| US2524797A | Traveling cleaner for textile machines or the like | Expired / Lapsed | 1947-12-12 | 1950-10-10 | 0 | Details |
| US2204016A | Ventilating and humidifying system | Expired / Lapsed | 1937-06-25 | 1940-06-11 | 0 | Details |
| US2063874A | Traveling cleaner | Expired / Lapsed | 1936-01-17 | 1936-12-08 | 0 | Details |
| US1819987A | Thermostatic apparatus | Expired / Lapsed | 1929-04-23 | 1931-08-18 | 0 | Details |
| US1401376A | Fiber-conditioning process and apparatus | Expired / Lapsed | 1917-11-14 | 1921-12-27 | 0 | Details |