Cities Service Oil Co
Cities SerActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3770378A | Method for detecting geopressures | Expired / Lapsed | 1971-06-18 | 1973-11-06 | 5 | Details |
| US2435542A | Wax acids separation process | Expired / Lapsed | 1946-05-17 | 1948-02-03 | 0 | Details |
| US2431632A | Heater for high temperature reactions and conversions | Expired / Lapsed | 1943-05-27 | 1947-11-25 | 0 | Details |
| US2423844A | Timepiece lubricant | Expired / Lapsed | 1945-10-18 | 1947-07-15 | 0 | Details |
| US2393799A | Inhibited turbine oil and the corrosive inhibitor therefor | Expired / Lapsed | 1944-08-09 | 1946-01-29 | 0 | Details |
| US2383915A | Lubricants | Expired / Lapsed | 1942-07-03 | 1945-08-28 | 0 | Details |
| US2362767A | Lubricants | Expired / Lapsed | 1942-06-03 | 1944-11-14 | 0 | Details |
| US2339096A | Solvent composition and method of cleaning lubricated appar… | Expired / Lapsed | 1941-05-22 | 1944-01-11 | 0 | Details |
| US2272039A | Refractory composition | Expired / Lapsed | 1938-07-20 | 1942-02-03 | 0 | Details |
| US2243219A | Porous refractory and process of manufacture | Expired / Lapsed | 1938-06-25 | 1941-05-27 | 0 | Details |