US3560144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrochlore-type ternary oxides tl2ru207 and tl2ir207
Assignee: EIDP Inc
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Filing: 1968-06-28
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Granted: 1971-02-02
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Expires: 1988-06-28
Abstract
Abstract DESCRIBED AND CLAIMED ARE THE TWO TERNARY COMPOUNDS TL2RU2O7 AND TL2IR2O7, BOTH OF WHICH HAVE THE PYROCHLORETYPE STRUCTURE. THE COMPOUNDS ARE PRODUCED FROM MIXTURES OF THE BINARY OXIDES, TL2O3 AND RUO2 OR IRO2, RESPECTIVELY, IN SUBSTANTIALLY THE STOICHIOMETRIC RATIOS AT TEMPERATURES OF 400*C. TO 1,400*C. THE COMPOUNDS ARE USEFUL IN ELECTRICAL APPLICATIONS.
Inventors
- 👤 Arthur W Sleight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:40
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/08; C; C01; C01G; C01G55/00; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; H01C17/0654
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |