US3309140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaching of uranium ore in situ
Assignee: Utah Construction and Mining Co
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Filing: 1962-11-28
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Granted: 1967-03-14
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Gardner John
- 👤 Malcolm I Ritchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:50
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
THE METHOD OF RECOVERING URANIUM FROM AN UNDERGROUND DEPOSIT OF URANIUM MINERAL IN SITU AND LOCATED IN AN EXISTING RESERVOIR OF FLUID WHICH COMPRISES DRILLING A RECOVERY WELL AND A PLURALITY OF INJECTION WELLS IN A PATTERN DETERMINED BY THE PERMEABILITY, POROSITY AND WATER BEARING CHARACTERISTICS OF THE UNDERGROUND DEPOSIT, CASING AND SEALING SAID WELLS, INTRODUCING AN ACIDIC LEACH SOLUTION INTO SAID UNDERGROUND DEPOSIT THROUGH SAID KINJECTION WELLS IN AN AMOUNT SUFFICIENT TO DISPLACE THE EXISTING RESERVOIR FLUIDS IN THE AREA DEFINED BY THE PREDETERMINED PATTERN AND TO FORM AN ISLAND OF LEACH SOLUTION ABOUT SAID INJECTION WELLS AND SAID RECOVERY WELL AND AT A PRESSURE BELOW FORMATION FRACTURE PRESSURES SO THAT SAID LEACH SOLUTION IS SUBSTANTIALLY CONFINED THEREABOUT BY THE SURROUNDING RESERVOIR OF FLUID, AND SUBSEQUENTLY RECOVERING THE SOLUTION THROUGH THE RECOVERY WELL AND RECOVERING URANIUM FROM THE SOLUTION.
Claim 2
Independent Claim
140 words
THE METHOD OF RECOVERING URANIUM FROM AN UNDERGROUND DEPOSIT OF URANIUM MINERAL IN SITU AND LOCATED IN AN EXISTING RESERVOIR OF FLUID WHICH COMPRISES DRILLING A RECOVERY WELL AND A PLURALITY OF INJECTION WELLS IN A PATTERN DETERMINED BY THE PERMEABILITY, POROSITY AND WATER BEARING CHARACTERISTICS OF THE UNDERGROUND DEPOSIT, CASING AND SEALING SAID WELLS, INTRODUCING AN ACIDIC LEACH SOLUTION INTO SAID UNDERGROUND DEPOSIT THROUGH SAID KINJECTION WELLS IN AN AMOUNT SUFFICIENT TO DISPLACE THE EXISTING RESERVOIR FLUIDS IN THE AREA DEFINED BY THE PREDETERMINED PATTERN AND TO FORM AN ISLAND OF LEACH SOLUTION ABOUT SAID INJECTION WELLS AND SAID RECOVERY WELL AND AT A PRESSURE BELOW FORMATION FRACTURE PRESSURES SO THAT SAID LEACH SOLUTION IS SUBSTANTIALLY CONFINED THEREABOUT BY THE SURROUNDING RESERVOIR OF FLUID, AND SUBSEQUENTLY RECOVERING THE SOLUTION THROUGH THE RECOVERY WELL AND RECOVERING URANIUM FROM THE SOLUTION.
References Cited (Backward Citations)
GB296813A
Cited
US2818240A
Cited
US2896930A
Cited
US2964380A
Cited
US2954218A
Cited
US2973811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |