Patent US2610952A successfully refreshed from Google Patents.
US2610952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of liquid fuel from solidified fuel
Assignee: Individual
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Filing: 1949-06-14
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Granted: 1952-09-16
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Expires: 1969-06-14
Abstract
No abstract record available.
Inventors
- 👤 Karl A Fischer
- 👤 Otto F Hecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:45
CPC Classifications
C; C10; C10G; C10G1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS OF RECOVERING LIQUID HYDROCARBON FROM A SOLIDIFIED GEL STRUCTURE ESSENTIALLY COMPRISING A DISPERSED LIQUID HYDROCARBON PHASE AND A WATER-INSOLUBLE CALCIUM COMPLEX AS THE CONTINUOUS PHASE, COMPRISING REACTING SAID CONTINUOUS PHASE WITH A SOLUTION OF A SALT WHOSE POSITIVE RADICAL IS A MEMBER OF THE GROUP CONSISTING OF ALKALINE METAL AND AMMONIUM AND WHOSENEGATIVE RADICAL IS A MEMBER OF THE GROUP CONSISTING OF HEXABIMETAPHOPHATE, NITRILO-TRIACETATE AND HYDRAZINO-TETRA-ACETATE, WHEREBY SAID CALCIUM COMPLEX IS CHANGED INTO A WATER-SOLUBLE AND SUBSTANTIALLY 1. DROCARBON-INSOLUBLE COMPLEX; AT LEAST PARTLY DISSOLVING SAID WATER-SOLUBLE COMPLEX, WHEREBY SAID LIQUID HYDROCARBON PHASE IS RELATED; AND SEPARATING SAID RELEASED LIQUID HYDROCARBON FROM THE RESIDUE.
Claim 2
Dependent Claim
105 words
THE PROCESS OF RECOVERING LIQUID HYDROCARBON FROM A SOLIDIFIED GEL STRUCTURE ESSENTIALLY COMPRISING A DISPERSED LIQUID HYDROCARBON PHASE AND A WATER-INSOLUBLE CALCIUM COMPLEX AS THE CONTINUOUS PHASE, COMPRISING REACTING SAID CONTINUOUS PHASE WITH A SOLUTION OF A SALT WHOSE POSITIVE RADICAL IS A MEMBER OF THE GROUP CONSISTING OF ALKALINE METAL AND AMMONIUM AND WHOSENEGATIVE RADICAL IS A MEMBER OF THE GROUP CONSISTING OF HEXABIMETAPHOPHATE, NITRILO-TRIACETATE AND HYDRAZINO-TETRA-ACETATE, WHEREBY SAID CALCIUM COMPLEX IS CHANGED INTO A WATER-SOLUBLE AND SUBSTANTIALLY 1. DROCARBON-INSOLUBLE COMPLEX; AT LEAST PARTLY DISSOLVING SAID WATER-SOLUBLE COMPLEX, WHEREBY SAID LIQUID HYDROCARBON PHASE IS RELATED; AND SEPARATING SAID RELEASED LIQUID HYDROCARBON FROM THE RESIDUE.
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) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |