Patent US3207706A successfully refreshed from Google Patents.
US3207706A
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Resistor compositions
Assignee: EIDP Inc
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Filing: 1962-09-20
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Granted: 1965-09-21
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Hoffman Lewis Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:58
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/02; C03C8/10; C03C8/12; C03C3/00; C03C3/04; C03C3/062; C03C3/064; C03C3/066; C03C3/07; C03C3/072; C03C3/074; C03C8/14; C03C8/18; H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; H01C17/06546; H01C17/06573; H01C17/0658; H01C7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A RESISTOR COMPOSITION CONSISTING OF 35 TO 85 PERCENT OF A FRIT HAVING 24-34% ZNO, 18-25% SIO2, 22-30% B2O3, 3-7% AL2O3, 4-10% NA2O, 4-6% ZRO2, 0-4% CAO, 0-4% P2O5, LESS THAN 1% EACH AND LESS THAN 2 TOTAL.AMOUNT OF PBO, SB2O3, TIO2, NIO AND FE2O3 AND LESS THAN 0.1% OF OTHER ALKALI METAL OXIDES, AND 65% TO 15% OF SILVER AND A SUBSTANCE OF THE GROUP CONSISTING OF PALLADIUM AND PALLADIUM OXIDE, IN WHICH THE RATIO OF AG:THE PD CONTENT OF SAID SUBSTANCE IS BETWEEN 3:2 AND 2:3.
Claim 2
Dependent Claim
88 words
A RESISTOR COMPOSITION CONSISTING OF 35 TO 85 PERCENT OF A FRIT HAVING 24-34% ZNO, 18-25% SIO2, 22-30% B2O3, 3-7% AL2O3, 4-10% NA2O, 4-6% ZRO2, 0-4% CAO, 0-4% P2O5, LESS THAN 1% EACH AND LESS THAN 2 TOTAL.AMOUNT OF PBO, SB2O3, TIO2, NIO AND FE2O3 AND LESS THAN 0.1% OF OTHER ALKALI METAL OXIDES, AND 65% TO 15% OF SILVER AND A SUBSTANCE OF THE GROUP CONSISTING OF PALLADIUM AND PALLADIUM OXIDE, IN WHICH THE RATIO OF AG:THE PD CONTENT OF SAID SUBSTANCE IS BETWEEN 3:2 AND 2:3.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |