US2832724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coal hydrogenation process
Assignee: Union Carbide Corp
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Filing: 1951-11-14
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Granted: 1958-04-29
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Expires: 1971-11-14
Abstract
No abstract record available.
Inventors
- 👤 Edward W Doughty
- 👤 John H Howell
- 👤 Marion A Eccles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:45
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/08; C10G1/083; Y; Y10; Y10S; Y10S48/00; Y10S48/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE PROCESS OF REACTING HYDROGEN WITH COAL TO FORM HYDROGENAATION PRODUCTS WHICH COMPRISES SEPARATELY HEATING PULVERIZED COAL, MIXING THE HEATED PULVERIZED COAL WITH HOT PASTING OIL TO EFFECT A DISTRIBUTION OF HEAT BETWEEN THE OIL AND COAL WHEREBY THE TEMPERATUREE OF THE MIXTURE IS AT LEAST 300* C. AND DISPERSING THE COAL IN THE OIL TO FROM A FLUID PASTE CAPABLE OF BEING PUMPED, DIRECTLY MIXING THE HOT PASTE WITH HYDROGEN UNDER PRESSURE TO FROM HYDROGENATION PRODUCTSS AND REVOCERING THE SAID HYDROGENATION PRODUCTS.
Claim 2
Dependent Claim
83 words
THE PROCESS OF REACTING HYDROGEN WITH COAL TO FORM HYDROGENAATION PRODUCTS WHICH COMPRISES SEPARATELY HEATING PULVERIZED COAL, MIXING THE HEATED PULVERIZED COAL WITH HOT PASTING OIL TO EFFECT A DISTRIBUTION OF HEAT BETWEEN THE OIL AND COAL WHEREBY THE TEMPERATUREE OF THE MIXTURE IS AT LEAST 300* C. AND DISPERSING THE COAL IN THE OIL TO FROM A FLUID PASTE CAPABLE OF BEING PUMPED, DIRECTLY MIXING THE HOT PASTE WITH HYDROGEN UNDER PRESSURE TO FROM HYDROGENATION PRODUCTSS AND REVOCERING THE SAID HYDROGENATION PRODUCTS.
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) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |