US3409847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state plasma structures
Assignee: AT&T Inc
•
Filing: 1964-08-12
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Granted: 1968-11-05
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Expires: 1984-08-12
Abstract
No abstract record available.
Inventors
- 👤 Cecil A Nanney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:13
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H10; H10N; H10N70/00; H10N70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2743322A
Cited
US3196384A
Cited
US3286203A
Cited
US3173102A
Cited
US3274406A
Cited
US3287659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |