US3232886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor compositions
Assignee: EIDP Inc
•
Filing: 1962-09-20
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Granted: 1966-02-01
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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 08:27
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/0089; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/064; C03C3/066; C03C8/00; C03C8/02; C03C8/04; H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06526; H01C17/06533; H01C17/0654; H01C17/06553; H01C7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A RESISTOR COMPOSITION CONSISTING ESSENTIALLY OF 20 TO 49 PERCENT BY WEIGHT OF FINELY DIVIDED GLASS FRIT AND 51 TO 80 PERCENT OF FINELY DIVIDED PALLADIUM AND SILVER IN THE WEIGHT RATIO OF PALLADIUM TO SILVER OF 55:45 TO 45:55, SAID PALLADIUM CONTAINING BETWEEN 0.1% AND 1% OF COMBINED OXYGEN AND CONSISTING OF PARTICLES OF FROM 0.5 TO 50 MICRONS IN DIAMETER, AND SAID SILVER CONSISTING OF PARTICLES OF FROM 0.1 TO 50 MICRONS IN DIAMETER.
Claim 2
Dependent Claim
76 words
A RESISTOR COMPOSITION CONSISTING ESSENTIALLY OF 20 TO 49 PERCENT BY WEIGHT OF FINELY DIVIDED GLASS FRIT AND 51 TO 80 PERCENT OF FINELY DIVIDED PALLADIUM AND SILVER IN THE WEIGHT RATIO OF PALLADIUM TO SILVER OF 55:45 TO 45:55, SAID PALLADIUM CONTAINING BETWEEN 0.1% AND 1% OF COMBINED OXYGEN AND CONSISTING OF PARTICLES OF FROM 0.5 TO 50 MICRONS IN DIAMETER, AND SAID SILVER CONSISTING OF PARTICLES OF FROM 0.1 TO 50 MICRONS IN DIAMETER.
References Cited (Backward Citations)
US2924540A
Cited
US3052573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |