US2758128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron carbon monoxide hydrogenation catalysts
Assignee: Lurgi Gesellschaft fuer Waermetechnik mbH
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Filing: 1952-10-07
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Granted: 1956-08-07
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Expires: 1972-10-07
Abstract
No abstract record available.
Inventors
- 👤 Rottig Walter
- 👤 Schenk Karl
- 👤 Spengler Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:29
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/78; B01J23/89; B01J23/8933; B01J23/8946; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/044; C07C2521/00; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/38; C07C2523/48; C07C2523/50; C07C2523/70; C07C2523/72; C07C2523/74; C07C2523/745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SUBSTANTIALLY CARRIER FREE REDUCED IRON CATALYST FOR THE HYDROGENATION OF CARBON MONOXIDE WITH THE PRODUCTION OF A HIGH YIELD OF LOW BOILING GASOLINE-LIKE HYDROCARBONS HAVING A FREE ALKALI OXIDE CONTENT OF 0.5 TO 2% CALCULATED AS K2O, A SIO2 CONTENT OF 0.5 TO 5%, A CONTENT OF FREE IRON OF LESS THAN 50%, AND AN INNER SURFACE OF 110 TO 180 SQUARE METERS PER GRAM OF IRON.
Claim 2
Dependent Claim
68 words
A SUBSTANTIALLY CARRIER FREE REDUCED IRON CATALYST FOR THE HYDROGENATION OF CARBON MONOXIDE WITH THE PRODUCTION OF A HIGH YIELD OF LOW BOILING GASOLINE-LIKE HYDROCARBONS HAVING A FREE ALKALI OXIDE CONTENT OF 0.5 TO 2% CALCULATED AS K2O, A SIO2 CONTENT OF 0.5 TO 5%, A CONTENT OF FREE IRON OF LESS THAN 50%, AND AN INNER SURFACE OF 110 TO 180 SQUARE METERS PER GRAM OF IRON.
References Cited (Backward Citations)
GB672259A
Cited
US2617774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |