US2726196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gilsonite conversion
Assignee: Lummus Technology LLC
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Filing: 1952-12-30
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Granted: 1955-12-06
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Expires: 1972-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ward J Bloomer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:37
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE METHOD RECOVERING VALUABLE HYDROCARBON CONSTITUENTS OF A NORMALLY SOLID ASPHALTITE, WHICH COMPRISES FORMING A SOLUTION OF GROUND ASPHALTITE TOGETHER WITH A HIGH BOILING HYDROCARBON LIQUID HAVING AN END POINT OF BETWEEN 700 TO 900* F. AND DIRECTLY HEATING SUCH MIXTURE TO A CRACKING TEMPERATURE ABOVE THE INCIPIENT COKING TEMPERATURE OF THE ASPHALTITE IN THE ABSENCE OF COKE FORMATION, THE QUANTITY OF LIQUID AND ITS LATENT HEAT BEING SUCH THAT THE EXOTHERMIC HEAT GIVEN OFF BY THE ASPHALTITE DURING HEATING AND CRACKING IS LARGELY DISSIPATED IN THE VAPORIZATION OF THE HIGH BOILING LIQUID.
Claim 2
Independent Claim
93 words
THE METHOD RECOVERING VALUABLE HYDROCARBON CONSTITUENTS OF A NORMALLY SOLID ASPHALTITE, WHICH COMPRISES FORMING A SOLUTION OF GROUND ASPHALTITE TOGETHER WITH A HIGH BOILING HYDROCARBON LIQUID HAVING AN END POINT OF BETWEEN 700 TO 900* F. AND DIRECTLY HEATING SUCH MIXTURE TO A CRACKING TEMPERATURE ABOVE THE INCIPIENT COKING TEMPERATURE OF THE ASPHALTITE IN THE ABSENCE OF COKE FORMATION, THE QUANTITY OF LIQUID AND ITS LATENT HEAT BEING SUCH THAT THE EXOTHERMIC HEAT GIVEN OFF BY THE ASPHALTITE DURING HEATING AND CRACKING IS LARGELY DISSIPATED IN THE VAPORIZATION OF THE HIGH BOILING LIQUID.
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) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |