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US4424165A
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Volatile cerium complexes
Assignee: Corning Glass Works
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Filing: 1982-09-15
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Granted: 1984-01-03
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Expires: 2002-09-15
Abstract
Abstract A volatile and thermally stable complex of cerium, Cd(fod)4, and alkali metal-cerium beta -diketonate intermediates useful in its preparation and as sources of mixed metals, such as Na[Ce(fod)4], are described.
Inventors
- 👤 David A. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:40
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/92; C07C45/00; C07C45/77
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
18 words
A cerium β-diketonate complex of Ce +4 with 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5,octanedione (hfod) which has the molecular formula: Ce(fod) 4 .
Claim 2
Dependent Claim
18 words
A cerium β-diketonate complex of Ce +4 with 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5,octanedione (hfod) which has the molecular formula: Ce(fod) 4 .
Claim 3
Dependent Claim
33 words
A β-diketonate complex of Ce +3 and M +1 with 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedione (hfod), having the molecular formula: M Ce(fod) 4 !, wherein M is selected from the group: Na, Li, K, Cs and Rb.
Claim 4
Dependent Claim
33 words
A β-diketonate complex of Ce +3 and M +1 with 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedione (hfod), having the molecular formula: M Ce(fod) 4 !, wherein M is selected from the group: Na, Li, K, Cs and Rb.
Claim 5
Dependent Claim
12 words
A β-diketonate complex in accordance with claim 2 wherein M is Na.
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) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |