US3447045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-insulator-metal tunneling device with exponential i-v characteristic only in the negative resistance range
Assignee: General Electric Co
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Filing: 1967-09-27
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Granted: 1969-05-27
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Expires: 1987-09-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Hickmott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:35
CPC Classifications
B; B82; B82Y; B82Y10/00; H; H01; H01B; H01B3/00; H01B3/02; H01B3/10; H01J; H01J1/00; H01J1/02; H01J1/30; H01J1/312; H10; H10D; H10D99/00; H10N; H10N70/00
Claims Analysis
Total Claims: 0
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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) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |