US3711328A
Expired / Lapsed
US
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Resistor paste
Assignee: Panasonic Holdings Corp
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Filing: 1971-01-28
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Granted: 1973-01-16
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Expires: 1991-01-28
Abstract
Abstract NOVEL RESISTOR PASTES ARE PROVIDED, WHICH, ON FIRING FORM RESISTORS WITH LOW DIFFERENTIAL IN ELECTRICAL RESISTANCE BETWEEN THE GLASS COATED AND UNCOATED FORM. THE RESISTOR PASTES COMPRISE, AS A SOLID INGREDIENT, 40 TO 90% BY WEIGHT OF A MIXTURE CONSISTING ESSENTIALLY OF 20 TO 92% BY WEIGHT OF FINELY DIVIDED CADIUM OXIDE AND 8 TO 80% BY WEIGHT OF FINELY DIVIDED GLASS FRIT AND 10 TO 60% BY WEIGHT OF LIQUID VEHICLE, SAID FINELY DIVIDED GLASS FRIT CONSISTING ESSENTIALLY OF 0.1 TO 17.0% BY WEIGHT OF AG2O AND 83.0 TO 99.9% BY WEIGHT OF A BASE COMPOSITION WHICH CONSISTS ESSENTIALLY OF 60 TO 80% BY WEIGHT OF PBO, 8 TO 16% BY WEIGHT OF B2O3 AND 12 TO 24% BY WEIGHT OF ZNO.
Inventors
- 👤 M Aoki
- 👤 T Hikino
- 👤 M Wada
- 👤 M Mikoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:03
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/14; C03C3/145; C03C3/142; C03C8/00; C03C8/02; C03C8/10; H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; H01C17/06546
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |