US2873257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of catalyst preparation
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-06-14
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Granted: 1959-02-10
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Expires: 1975-06-14
Abstract
No abstract record available.
Inventors
- 👤 Hunter Edward Allen
- 👤 Rouge Baton
- 👤 Gladrow Elroy Merle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:46
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
51 words
A METHOD OF PREPARING A COBALT MOLYBDATE CATALYST IN WHICH AQUEOUS SOLUTIONS OF COBALT ACETATE AND AMMONIUM MOLYBDATE IN WEIGHT RATIO OF COBALT ACETATE TO AMMONIUM MOLYBDATE WITHIN THE RANGE OF ABOUT 0.12:1 TO ABOUT 2:1 ARE RAPIDLY MIXED TOGETHER WITH AN ACTIVATED CATALYST CARRIER AT A TEMPERATURE ABOVE ABOUT 120*F.
Claim 2
Independent Claim
51 words
A METHOD OF PREPARING A COBALT MOLYBDATE CATALYST IN WHICH AQUEOUS SOLUTIONS OF COBALT ACETATE AND AMMONIUM MOLYBDATE IN WEIGHT RATIO OF COBALT ACETATE TO AMMONIUM MOLYBDATE WITHIN THE RANGE OF ABOUT 0.12:1 TO ABOUT 2:1 ARE RAPIDLY MIXED TOGETHER WITH AN ACTIVATED CATALYST CARRIER AT A TEMPERATURE ABOVE ABOUT 120*F.
References Cited (Backward Citations)
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Cited
US1386555A
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US2260409A
Cited
US2369432A
Cited
US2748108A
Cited
US2744052A
Cited
US2758957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |