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US3427559A
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Tunable signal translation system using semiconductor drift field delay line
Assignee: Westinghouse Electric Corp
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Filing: 1966-08-26
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Granted: 1969-02-11
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Expires: 1986-08-26
Abstract
No abstract record available.
Inventors
- 👤 James R Cricchi
- 👤 Francis Rachal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/26; H03H7/00; H03H7/30; H10; H10D; H10D84/00; H10D84/40; H10D84/401; H10D84/403; H10D84/60; H10D84/611; H10D84/613; H10D84/615; H10D99/00
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |