RALPH H FASH
RALPH H FAActive Patents
0
Total Holdings
5
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2459512A | Petroleum exploration by soil analysis | Expired / Lapsed | 1944-11-06 | 1949-01-18 | 0 | Details |
| US2361261A | Method of detecting the penetration of an oil-bearing horiz… | Expired / Lapsed | 1940-10-09 | 1944-10-24 | 0 | Details |
| US2311151A | Analysis of soil samples for determining oil content | Expired / Lapsed | 1940-05-10 | 1943-02-16 | 0 | Details |
| US2297939A | Method of detecting the penetration of an oil-bearing horiz… | Expired / Lapsed | 1940-10-09 | 1942-10-06 | 0 | Details |
| US2227438A | Method of determining the petroleum oil content of earth sa… | Expired / Lapsed | 1938-09-24 | 1941-01-07 | 0 | Details |