US2907389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of oil from oil sands and the like
Assignee: Phillips Petroleum Co
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Filing: 1956-06-18
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Granted: 1959-10-06
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Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 Donald O Hitzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:46
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE PROCESS FOR RECOVERING OIL FROM SUBDIVIDED OIL BEARING INORGANIC SOLIDS WHICH COMPRISES WASHING SAID SOLIDS FROM A FORMATION BY THE USE OF A HIGH VELOCITY STREAM OF WATER WHEREBY A SLURRY OF SOLIDS IN WATER IS OBTAINED, PASSING SAID SLURRY TO AN ACCUMULATING ZONE CONTAINING WATER, CONTACTING THE SOLIDS IN THE ACCUMULATING ZONE WITH BACTERIA SELECTED FROM THE GENERA AEROBIC AND FACULTATIVE IN THE PRESENCE OF OXYGEN WHEREBY OIL IS RELEASED FROM THE SOLIDS AND ACCUMULATES ON THE SURFACE OF THE WATER AND REMOVING OIL FROM THE ACCUMULATING ZONE.
Claim 2
Dependent Claim
90 words
THE PROCESS FOR RECOVERING OIL FROM SUBDIVIDED OIL BEARING INORGANIC SOLIDS WHICH COMPRISES WASHING SAID SOLIDS FROM A FORMATION BY THE USE OF A HIGH VELOCITY STREAM OF WATER WHEREBY A SLURRY OF SOLIDS IN WATER IS OBTAINED, PASSING SAID SLURRY TO AN ACCUMULATING ZONE CONTAINING WATER, CONTACTING THE SOLIDS IN THE ACCUMULATING ZONE WITH BACTERIA SELECTED FROM THE GENERA AEROBIC AND FACULTATIVE IN THE PRESENCE OF OXYGEN WHEREBY OIL IS RELEASED FROM THE SOLIDS AND ACCUMULATES ON THE SURFACE OF THE WATER AND REMOVING OIL FROM THE ACCUMULATING ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |