US2801090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur mining using heating by electrolysis
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-04-02
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Granted: 1957-07-30
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Expires: 1976-04-02
Abstract
No abstract record available.
Inventors
- 👤 Wilmer A Hoyer
- 👤 Jr Millard S Taggart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:47
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/285; E21B43/16; E21B43/24; E21B43/2401
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A METHOD FOR PRODUCING A LIQUEFIABLE MINERAL FROM A SUBSURFACE EARTH FORMATIOON CONTAINING SAID MINERAL AND AN AQUEOUS ELECTROLYTE WHICH COMPRISES DRILLING A WELL TO PENETRATE SAID FORMATION, PLACING AN ELECTRICALLY LIN SAID FORMATION SURROUNDING SAID WELL AND IN CONTACT WITH SAID ELECTROLYTE, PASSING AN ELECTRIC CURRENT THROUGH SAID ELECTRODES AND THE INSULATED PIPE AND CONDUCTING SAID CURRENT THROUGH SAID ELECTROLYTE, THE INPUT CURRENT TO SELECTED OF SAID ELECTRODES SURROUNDING SAID WELL AND TO SAID INSULATED PIPE BEING CONTROLLED SUCH THAT CURRENT FLOW LIS FROM THE WELL TO SAILD SELECTED ELECTRODES, WHEREBY SAID LFORMATION IS HEATED TO ITS MAXIMUM EXTENT ADJACENT THE WELL LBY THE ELECTRICAL RESISTANCE OF SAID ELECTROLYTE AND SAID MINERAL IS RENDERED FLUID, AND THEN FLOWING SAID MINERAL FROM SAID FORMATION THROUGH SAID WELL PENETRATING THE FORMATION.
Claim 2
Independent Claim
130 words
A METHOD FOR PRODUCING A LIQUEFIABLE MINERAL FROM A SUBSURFACE EARTH FORMATIOON CONTAINING SAID MINERAL AND AN AQUEOUS ELECTROLYTE WHICH COMPRISES DRILLING A WELL TO PENETRATE SAID FORMATION, PLACING AN ELECTRICALLY LIN SAID FORMATION SURROUNDING SAID WELL AND IN CONTACT WITH SAID ELECTROLYTE, PASSING AN ELECTRIC CURRENT THROUGH SAID ELECTRODES AND THE INSULATED PIPE AND CONDUCTING SAID CURRENT THROUGH SAID ELECTROLYTE, THE INPUT CURRENT TO SELECTED OF SAID ELECTRODES SURROUNDING SAID WELL AND TO SAID INSULATED PIPE BEING CONTROLLED SUCH THAT CURRENT FLOW LIS FROM THE WELL TO SAILD SELECTED ELECTRODES, WHEREBY SAID LFORMATION IS HEATED TO ITS MAXIMUM EXTENT ADJACENT THE WELL LBY THE ELECTRICAL RESISTANCE OF SAID ELECTROLYTE AND SAID MINERAL IS RENDERED FLUID, AND THEN FLOWING SAID MINERAL FROM SAID FORMATION THROUGH SAID WELL PENETRATING THE FORMATION.
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) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |