PREST O LITE CO Inc
PREST O LIActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2277879A | Apparatus for controlling the level of finely divided mater… | Expired / Lapsed | 1938-10-12 | 1942-03-31 | 0 | Details |
| US1639280A | Storage cell and electrode therefor | Expired / Lapsed | 1922-08-11 | 1927-08-16 | 0 | Details |
| US1509186A | Storage cell, electrode therefor, and process of making the… | Expired / Lapsed | 1922-08-16 | 1924-09-23 | 0 | Details |
| US1500220A | Separator and method of making the same | Expired / Lapsed | 1922-05-02 | 1924-07-08 | 0 | Details |
| US1407588A | Method of manufacturing cylinders for dissolved acetylene | Expired / Lapsed | 1916-07-05 | 1922-02-21 | 0 | Details |
| US1332525A | Solvent for acetylene gas and the like | Expired / Lapsed | 1918-08-13 | 1920-03-02 | 0 | Details |