US3519956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonreciprocal ferrite phase-shifter for simultaneously phase shifting te01 and te10 modes in opposite directions
Assignee: Thales SA
•
Filing: 1968-03-14
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Granted: 1970-07-07
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Expires: 1988-03-14
Abstract
No abstract record available.
Inventors
- 👤 Thai Ngo Hai
- 👤 Henri-Francois Bernadet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:03
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/19; H01P1/195; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/36; H01Q3/38
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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |