US3701654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver-base alloy for making electrical contacts
Assignee: Texas Instruments Inc
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Filing: 1967-01-03
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Granted: 1972-10-31
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Expires: 1987-01-03
Abstract
Abstract IMPROVED ALLOYS OF CADMIUM OXIDE AND SILVER ARE PRODUCED BY INCORPORATING THEREIN BETWEEN 0.001% AND 5.0% BY WEIGHT OF SODIUM, BERYLLIUM OR PALLADIUM AS AN ADDITIVE. ELECTRICAL CONTACTS FORMED FORM SUCH ALLOYS EXHIBIT LESS ARC-EROSION AND CONTACT-STICKING WITH LOWER CONTACTRESISTANCE THAN DO ELECTRICAL CONTACTS FORMED FROM CADMIUM OXIDE-SILVER ALLOYS HAVING COBALT INCORPORATED THEREIN AS AN ADDITIVE.
Inventors
- 👤 Teuvo J Santala
- 👤 Hans G Hirsbrunner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:45
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/001; C22C32/0015; C22C32/0021; H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/023; H01H1/0237; H01H1/02372; H01H1/02374
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |