US3277401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-stable phase shifters for microwaves employing a plurality of high remanent magnetization materials
Assignee: MICROWAVE CHEMICALS LAB Inc
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Filing: 1963-02-15
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Granted: 1966-10-04
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Expires: 1983-02-15
Abstract
No abstract record available.
Inventors
- 👤 Stern Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
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: 2
Claim 1
Independent Claim
87 words
A MULTI-STABLE MICROWAVE PHASE SHIFTER DEVICE, COMPRISING A HOLLOW WAVEGUIDE, A PLURALITY OF TOROIDAL PIPES DISPOSED IN AXIAL ALIGNMENT WITH EACH OTHER AND EXTENDING AXIALLY INSIDE THE WAVEGUIDE, A FIRST WIRE EXTENDING AXIALLY THROUGH THE ALIGNED PIPES, AND BRANCH WIRES EXTENDING LATERALLY FROM THE FIRST WIRE AT OPPOSITE ENDS OF THE PIPES, SAID BRANCH WIRES EXTENDING LATERALLY OF THE WAVEGUIDE AND TERMINATING OUTSIDE OF THE WAVEGUIDE, EACH OF SAID PIPES BEING FORMED OF AN INSULATING MAGNETIC MATERIAL HAVING HIGH REMANENT MAGNETIZATION AS COMPARED WITH ITS SATURATION MAGNETIZATION.
Claim 2
Dependent Claim
87 words
A MULTI-STABLE MICROWAVE PHASE SHIFTER DEVICE, COMPRISING A HOLLOW WAVEGUIDE, A PLURALITY OF TOROIDAL PIPES DISPOSED IN AXIAL ALIGNMENT WITH EACH OTHER AND EXTENDING AXIALLY INSIDE THE WAVEGUIDE, A FIRST WIRE EXTENDING AXIALLY THROUGH THE ALIGNED PIPES, AND BRANCH WIRES EXTENDING LATERALLY FROM THE FIRST WIRE AT OPPOSITE ENDS OF THE PIPES, SAID BRANCH WIRES EXTENDING LATERALLY OF THE WAVEGUIDE AND TERMINATING OUTSIDE OF THE WAVEGUIDE, EACH OF SAID PIPES BEING FORMED OF AN INSULATING MAGNETIC MATERIAL HAVING HIGH REMANENT MAGNETIZATION AS COMPARED WITH ITS SATURATION MAGNETIZATION.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |