US2830960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt molybdate catalysts
Assignee: Peter Spence and Sons Ltd
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Filing: 1954-08-13
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Granted: 1958-04-15
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Expires: 1974-08-13
Abstract
No abstract record available.
Inventors
- 👤 Broomhead Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:38
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A METHOD OF PREPARING A CATALYST COMPRISING THE OXIDES OF COBALT AND MOLYBDENUM, SAID METHOD COMPRISING MIXING A MAJOR PROPORTION OF AN OXIDIC CARRIER SELECTED FROM THE GROUP CONSISTING OF ALUMINA, ZIRCONIA, TITANIA, SILICA, THORIA AND MIXTURES THEREOF WITH A MINOR PROPORTION OF A CATALYTIC AGENT COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN OXIDE OF MOLYBDENUM AND MOLYBDIC ACID AND A COBALT SALT SELECTED FROM THE GROUP CONSISTING OF COBALT FORMATE AND COBALT EXALATE AND HEATING THE RESULTANT MIXTURE AT A TEMPERATURE SUFFICIENT TO DECOMPOSE THE COBALT SALT, THE PROPORTIONS OF OXIDIC CARRIER, AND CATALYTIC AGENT BEING SO CHOSEN THAT THE PRODUCT OBTAINED BY SAID HEATING CONTAINS AT LEAST 60% BY WEIGHT OF OXIDIC CARRIER AND HAS A
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |