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US3775347A
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Compositions for making resistors comprising lead-containing polynary oxide
Assignee: EIDP Inc
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Filing: 1972-03-16
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Granted: 1973-11-27
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Expires: 1992-03-16
Abstract
Abstract POWDER COMPOSITIONS WHICH YEILD RESISTORS HAVING EXCELLENT TEMPERATURE COEFFICIENT OF RESISTANCE CHARACTERISTICS (AT MIDDLE AND HIGH RESISTIVITY) COMPRISING, BY WEIGHT, (1) 20-80% POLYNARY OXIDE(S) OF THE FORMULA (MXPB2-X) (M''2)O7-Z WHEREIN M IS AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF YTTIUM, INDIUM, CADMIUN, BISMUTY AND THE RARE EARTH METALS OF ATOMIC NUMBER 57-71, INCLUSIVE; AND M'' IS AT LEAST ONE OF RUTHENIUM AND IRIDIUM, AND (2) 2080% OF DIELECTRIC MATERIAL WHICH IS A LEAD SILICATE OR MODIFIED LEAD SILICATE GLASS FRIT.
Inventors
- 👤 R Bouchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; H01C17/0654; C; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C8/00; C03C8/02; C03C8/10; C03C8/14; C04; C04B; C04B35/00; C04B35/01; H01B; H01B1/00; H01B1/06; H01B1/08
Claims Analysis
Total Claims: 0
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |