US2583254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon synthesis catalyst
Assignee: Phillips Petroleum Co
•
Filing: 1947-12-05
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Granted: 1952-01-22
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Expires: 1967-12-05
Abstract
No abstract record available.
Inventors
- 👤 Clark Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:43
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/94; B01J23/70; B01J23/76; B01J23/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A CATALYST FOR THE SYNTHESIS OF HYDROCARBONS BY THE REDUCATION OF CARBON MONOXIDE WITH HYDROGEN WHICH COMPRISES PROMOTED METALLIC IRON FORMED BY THE REDUCATION OF A COMMINUTED FUSED MIXTURE OF FE3O4, O.5-1.0 WEIGHT PER CENT OF K2O BASED ON TH FE3O4, AL2O3 IN A MOLECULAR EQUIVALENT PROPORTION TO THE THE K2O PLUS AN EXCESS OF 1-2 WEIGHT PER CENT BASED ON THE FE3O4, AND CAO IN THE PROPORTION OF 1-2 PER CENT BY WEIGHT OF THE FE3O4.
Claim 2
Dependent Claim
77 words
A CATALYST FOR THE SYNTHESIS OF HYDROCARBONS BY THE REDUCATION OF CARBON MONOXIDE WITH HYDROGEN WHICH COMPRISES PROMOTED METALLIC IRON FORMED BY THE REDUCATION OF A COMMINUTED FUSED MIXTURE OF FE3O4, O.5-1.0 WEIGHT PER CENT OF K2O BASED ON TH FE3O4, AL2O3 IN A MOLECULAR EQUIVALENT PROPORTION TO THE THE K2O PLUS AN EXCESS OF 1-2 WEIGHT PER CENT BASED ON THE FE3O4, AND CAO IN THE PROPORTION OF 1-2 PER CENT BY WEIGHT OF THE FE3O4.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |