US2701326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor translating device
Assignee: AT&T Inc
•
Filing: 1949-12-30
•
Granted: 1955-02-01
•
Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
- 👤 William G Pfann
- 👤 Henry C Theuerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:00
CPC Classifications
H; H10; H10P; H10P95/00; H10D; H10D99/00; H10P10/00; H10P10/12; H10P10/128; Y; Y10; Y10S; Y10S148/00; Y10S148/062; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2438110A
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US2437269A
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US2415841A
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US2514879A
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US2449484A
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US2556991A
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US2496432A
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US2450851A
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US2555001A
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US2560792A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |