US3069292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising particles of refractory oxide, coated with an oxide of a transition metal
Assignee: EIDP Inc
•
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
2026-10-23 00:10
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,
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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) | 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 |