US2618588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized shale distillation
Assignee: Standard Oil Development Co
•
Filing: 1949-06-21
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Granted: 1952-11-18
•
Expires: 1969-06-21
Abstract
No abstract record available.
Inventors
- 👤 Charles E Jahnig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:08
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN THE PROCESS OF DISTILLING OIL-BEARING MINERALS OF THE TYPE OF OIL SHALE, WHICH DISINTEGRATE WHEN SUBJECTED TO DISTILLATION, IN THE FORM OF A DENSE TURBULENT MASS OF SUBDIVIDED SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GASIFORM MEDIUM TO FORM A WELL DEFINED INTERFACE WITHIN A DISTILLATION ZONE, THE IMPROVEMENT WHICH COMPRISES FEEDING SAID OIL-BEARING MINERALS TO SAID MASS, OBSTRUCTING THE UPWARD FLOW OF SAID MEDIUM CONTAINING ENTRAINED SOLIDS WITHIN THE DISTILLATION ZONE AT A LEVEL ABOVE SAID INTERFACE BY AN OBSTRUCTION, WHICH PERMITS SAID MEDIUM TO FLOW UPWARDLY OVER THE ENTIRE HEIGHT OF SAID DISTILLATION ZONE PAST SAID OBSTRUCTION, FORMING A SECOND FLUIDIZED MASS
Claim 2
Dependent Claim
104 words
IN THE PROCESS OF DISTILLING OIL-BEARING MINERALS OF THE TYPE OF OIL SHALE, WHICH DISINTEGRATE WHEN SUBJECTED TO DISTILLATION, IN THE FORM OF A DENSE TURBULENT MASS OF SUBDIVIDED SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GASIFORM MEDIUM TO FORM A WELL DEFINED INTERFACE WITHIN A DISTILLATION ZONE, THE IMPROVEMENT WHICH COMPRISES FEEDING SAID OIL-BEARING MINERALS TO SAID MASS, OBSTRUCTING THE UPWARD FLOW OF SAID MEDIUM CONTAINING ENTRAINED SOLIDS WITHIN THE DISTILLATION ZONE AT A LEVEL ABOVE SAID INTERFACE BY AN OBSTRUCTION, WHICH PERMITS SAID MEDIUM TO FLOW UPWARDLY OVER THE ENTIRE HEIGHT OF SAID DISTILLATION ZONE PAST SAID OBSTRUCTION, FORMING A SECOND FLUIDIZED MASS
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |