US3324418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching circulator having slots extending from the pole pieces to the exterior of the housing to overcome the shorted-turn effect
Assignee: Caswell Electronics Corp
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Filing: 1964-10-23
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Granted: 1967-06-06
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Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 Dwight A Caswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:23
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/32; H01P1/38; H01P1/383
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
IN A SWITCHING CIRCULATOR, A METAL HOUSING HAVING AT LEAST FIRST, SECOND AND THIRD TRANSMISSION LINE SECTIONS INTERCONNECTED BY A JUNCTION FORMED THEREIN, A GYROMAGNETIC ELEMENT DISPOSED AT SAID JUNCTION, MEANS FOR APPLYING A MAGNETIC FIELD TO THE GYROMAGNETIC ELEMENT TRANSVERSE TO THE DIRECTION OF PROPAGATION OF WAVE ENERGY IN THE TRANSMISSION LINE SECTIONS, SAID LAST NAMED MEANS INCLUDING FIRST AND SECOND POLE PIECES DISPOSED ON OPPOSITE SIDE OF SAID GYROMAGNETIC ELEMENT AND DISPOSED WITHIN THE HOUSING, MEANS FORMING A MAGNETIC RETURN PATH FOR SAID FIRST AND SECOND POLE PIECES, THE HOUSING HAVING SLOTS THEREIN EXTENDING FROM THE FIRST AND SECOND POLE PIECES
References Cited (Backward Citations)
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US2908878A
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US3101458A
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US2998579A
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US3104361A
Cited
US3165711A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |