US3045129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor tunnel device
Assignee: AT&T Inc
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Filing: 1960-12-08
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Granted: 1962-07-17
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Expires: 1980-12-08
Abstract
No abstract record available.
Inventors
- 👤 Martin M Atalla
- 👤 Ian M Ross
- 👤 Friedolf M Smits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:50
CPC Classifications
H; H10; H10D; H10D30/00; H10D30/60; H10D10/00; H10D48/00; H10D48/01; H10D48/021; H10D48/30; H10D48/32; H10D62/00; H10D62/10; H10D8/00; H10D8/70; H10D99/00; H10P; H10P95/00; H10P95/50
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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |