Patent US1716283A successfully refreshed from Google Patents.
Patent US3069292A successfully refreshed from Google Patents.
US3069292A
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Composition comprising particles of refractory oxide, coated with an oxide of a transition metal
Assignee: EIDP Inc
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Filing: 1958-07-16
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Granted: 1962-12-18
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Expires: 1978-07-16
Abstract
No abstract record available.
Inventors
- 👤 Guy B Alexander
- 👤 Paul C Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:31
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B35/00; C04B35/71; C04B41/45; C04B41/4584; C04B41/80; C04B41/81; C22; C22C; C22C32/00; Y; Y10; Y10S; Y10S75/00; Y10S75/956; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A COMPOSITION ADAPTED FOR DISPERSION IN METALS, THE COMPOSITION COMPRISING DISCRETE PARTICLES HAVING A CORE 5 TO 500 MILLIMICRONS IN SIZE, THE CORE COMPRISING A METAL OXIDE WITH A MELTING POINT ABOVE 1550*C. AND A FREE ENERGY OF FORMATION AT 1000*C. GREATER THAN 100 KILOCALORIES PER GRAM ATOM OF OXYGEN IN THE OXIDE, THE CORE BEING COVERED WITH A COATING OF AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF VANADIUM, NIOBIUM,
Claim 2
Dependent Claim
74 words
A COMPOSITION ADAPTED FOR DISPERSION IN METALS, THE COMPOSITION COMPRISING DISCRETE PARTICLES HAVING A CORE 5 TO 500 MILLIMICRONS IN SIZE, THE CORE COMPRISING A METAL OXIDE WITH A MELTING POINT ABOVE 1550*C. AND A FREE ENERGY OF FORMATION AT 1000*C. GREATER THAN 100 KILOCALORIES PER GRAM ATOM OF OXYGEN IN THE OXIDE, THE CORE BEING COVERED WITH A COATING OF AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF VANADIUM, NIOBIUM,
References Cited (Backward Citations)
US976594A
Cited
US2417461A
Cited
US2785974A
Cited
US2776887A
Cited
US2686118A
Cited
US2776914A
Cited
US2734835A
Cited
US2823988A
Cited
US2949358A
Cited
US2917406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |