Patent US1009909A successfully refreshed from Google Patents.
US3555463A
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Reciprocal microwave phase shifter having a plurality of longitudinal and transverse energizing conductors passing through the ferrimagnetic material
Assignee: NEC Corp
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Filing: 1968-10-17
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Granted: 1971-01-12
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Expires: 1988-10-17
Abstract
Abstract A RECIPROCAL MICROWAVE PHASE SHIFTER IS DESCRIBED WHEREIN A FERRIMAGNETIC MATERIAL IS DISPOSED ALONG AN ELECTROMAGNETIC ENERGY GUIDING PATH. THE FERRIMAGNETIC MATERIAL IS PROVIDED WITH LONGITUDINAL AND TRANSVERSE ORIENTED BORES TO ACCOMMODATE CORRESPONDINGLY ORIENTED CONDUCTORS WHICH ARE SO INTERCONNECTED AND ENERGIZED TO FORM THE DESIRED RECIPROCAL PHASE SHIFTING PERFORMANCE.
Inventors
- 👤 Naoyuki Ogasawara
- 👤 Tadashi Hashimoto
- 👤 Mitsuru Sugie
- 👤 Hiromi Nomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:02
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |