US2744308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor translating device and method of manufacture
Assignee: AT&T Inc
•
Filing: 1950-11-17
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Granted: 1956-05-08
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Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 George T Loman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10D; H10D99/00; H10W72/00; H10W76/00; H10W76/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2030187A
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US2270166A
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US2252899A
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US2339402A
Cited
US2495716A
Cited
US2503837A
Cited
US2609427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |