US2817637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of molybdenum-cobalt catalysts
Assignee: BP PLC
•
Filing: 1954-08-17
•
Granted: 1957-12-24
•
Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 Porter Frederick Willi Bertram
- 👤 Witten Leslie Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:11
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF PREPARING A CATALYST CONTAINING COBALT, MOLYBDENUM AND FLOURINE INCORPORTAED WITH AN ALUMINA SUPPORT, WHICH COMPRISES FORMING A MIXTURE OF WET ALUMINA GEL, MOLYBDIC ACID, COBALT FORMATE AND A FLOURINE COMPOUND SELECTED FROM THE GAROUP CONSISTING OF HYDROFLUORIC ACID AND ALUMINIUM FLOURIDE; DRYING SAID MIXTURE; AND, ROASTING SAME TO DECOMPOSE THE COBALT, MOLYBDENUM AND FLUORINE COMPOUNDS INCORPORATED WITH THE GEL, THE FLUORINE CONTENT OF THE FORMED CATALYST BEING IN THE RANGE OF 0.1% TO 6% BY WEIGHT.
Claim 2
Independent Claim
79 words
A METHOD OF PREPARING A CATALYST CONTAINING COBALT, MOLYBDENUM AND FLOURINE INCORPORTAED WITH AN ALUMINA SUPPORT, WHICH COMPRISES FORMING A MIXTURE OF WET ALUMINA GEL, MOLYBDIC ACID, COBALT FORMATE AND A FLOURINE COMPOUND SELECTED FROM THE GAROUP CONSISTING OF HYDROFLUORIC ACID AND ALUMINIUM FLOURIDE; DRYING SAID MIXTURE; AND, ROASTING SAME TO DECOMPOSE THE COBALT, MOLYBDENUM AND FLUORINE COMPOUNDS INCORPORATED WITH THE GEL, THE FLUORINE CONTENT OF THE FORMED CATALYST BEING IN THE RANGE OF 0.1% TO 6% BY WEIGHT.
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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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |