US2606142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation liquefaction of coal employing zinc catalysts
Assignee: Individual
•
Filing: 1949-04-13
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Granted: 1952-08-05
•
Expires: 1969-04-13
Abstract
No abstract record available.
Inventors
- 👤 Henry H Storch
- 👤 Michail G Pelipetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:19
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/08; C10G1/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR PRODUCING LIQUID PRODUCTS BY THE HYDROGENATION OF COAL, THE IMPROVEMENT WHICH COMPRISES REACTING COAL AT TEMPERATURES OF ABOUT 275*-700* C. WITH HYDROGEN UNDER SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF A CATALYST COMPRISING A FINELY DIVIDED ALLOY OF ZINC WITH ANTIMONY, THEREBY PRODUCING A HIGH ORDER OF PERCENTAGE OF COAL LIQUEFRACTION, SAID CATALYST BEING ESSENTIALLY THE SOLE CATALYTIC MATERIAL EMPOLYED IN SAID HYDROGENATION.
Claim 2
Dependent Claim
65 words
A PROCESS FOR PRODUCING LIQUID PRODUCTS BY THE HYDROGENATION OF COAL, THE IMPROVEMENT WHICH COMPRISES REACTING COAL AT TEMPERATURES OF ABOUT 275*-700* C. WITH HYDROGEN UNDER SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF A CATALYST COMPRISING A FINELY DIVIDED ALLOY OF ZINC WITH ANTIMONY, THEREBY PRODUCING A HIGH ORDER OF PERCENTAGE OF COAL LIQUEFRACTION, SAID CATALYST BEING ESSENTIALLY THE SOLE CATALYTIC MATERIAL EMPOLYED IN SAID HYDROGENATION.
References Cited (Backward Citations)
GB300703A
Cited
US1890439A
Cited
US1894770A
Cited
AU2204035A
Cited
US2159281A
Cited
US2325072A
Cited
US2464271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |