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Patent US3647664A successfully refreshed from Google Patents.
US3647664A
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Method of making a current controlling device including a vo2 film
Assignee: Energy Conversion Devices Inc
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Filing: 1970-09-08
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Granted: 1972-03-07
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Expires: 1990-09-08
Abstract
Abstract A CURRENT CONTROLLING DEVICE FOR AN ELECTRICAL CIRCUIT INCLUDING A SEMICONDUCTOR ELEMENT AND ELECTRODES IN LOW ELECTRICAL RESISTANCE CONTACT THEREWITH, WHEREIN SAID SEMICONDUCTOR ELEMENT HAS A THRESHOLD VOLTAGE VALUE AND A HIGH ELECTRICAL RESISTANCE TO PROVIDE A BLOCKING CONDITION FOR SUBSTANTIALLY BLOCKING CURRENT THERETHROUGH, WHEREIN THE HIGH ELECTRICAL RESISTANCE IN RESPONSE TO A VOLTAGE ABOVE SAID THRESHOLD VOLTAGE VALUE TO PROVIDE A CONDUCTING CONDITION FOR SUBSTANTIALLY CONDUCTING CURRENT THERETHROUGH, AND WHEREIN THE SEMICONDUCTOR ELEMENT BETWEEN THE ELECTRODES COMPRISES A THIN SUBSTANTIALLY AMORPHOUS FILM OF SUBSTANTIALLY VO2 HAVING ELECTRICAL RESISTANCE.
Inventors
- 👤 Gordon R Fleming
- 👤 Stanford R Ovshinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:56
CPC Classifications
H; H10; H10N; H10N70/00; H10N70/20; H10N70/801; H10N70/821; H10N70/823; H10N70/011; H10N70/021; H10N70/026; H10N70/231; H10N70/826; H10N70/881; H10N70/883; H10N70/8833
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |