US3681262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions for making electrical elements containing pyrochlore-related oxides
Assignee: EIDP Inc
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Filing: 1970-10-01
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Granted: 1972-08-01
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Expires: 1990-10-01
Abstract
Abstract COMPOSITIONS, WHICH YIELD ELECTRICAL ELEMENTS SUCH AS RESISTORS HAVING A WIDE RANGE OF RESISTANCES, LOW TCR''S AND GOOD STABILITY PROPERTIES, COMPRISING (1) AND OXIDE OF THE FORMULA (MXBI2-X)M''YM"2-Y)O7-Z WHEREIN M IS AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF YTTRIUM, THALLIUM, INDIUM, CADMIUM, LEAD AND THE RARE EARTH METALS OF ATOMIC NUMBER 57-71, INCLUSIVE, M'' IS AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM, TITANIUM, TIN, CHROMIUM, RHODIUM, RHENIUM, ZIRCONIUM, ANTIMONY AND GERMANIUM, M" IS AT LEAST ONE OF RUTHENIUM AND IRIDIUM, AND (2) DIELECTRIC MATERIAL.
Inventors
- 👤 Robert J Bouchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:09
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; H01C17/0654; C; C04; C04B; C04B35/00; C04B35/01; H01C7/00; H01C7/06
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |