US3213040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing an extended catalyst composition consisting of cobalt oxide, molybdenum oxide and alumina
Assignee: Chemetron Corp
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Filing: 1962-04-18
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Granted: 1965-10-19
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Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Chester L Pedigo
- 👤 Bruce T Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:40
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A METHOD OF PREPARING AN EXTRUDED COBALT-MOLYBDENUM-ALUMINA CATALYST WHICH COMPRISES MIXING 100 PARTS OF HYDRATED ALUMINA CONTAINING APPROXIMATELY EQUAL PROPORTIONS OF BETA-AL2/3$3H2O AND ALPHA-AL2O3$H2O, 1.5 PARTS TO 3.0 PARTS OF COO, K TO 15 PARTS OF MOO3 AND 2.5 TO 10 PARTS OF CONCENTRATED NITRIC ACID WITH SUFFICIENT WATER TO FORM A PASTE OF EXTRUDABLE CONSISTENCY, EXTRUDING SAID CATALYST PASTE THROUGH A DIE AND CALCINING SAID CATALYST AT A TEMPERATURE IN THE RANGE OF 700* TO 1,000*F.
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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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |