Patent US2788577A successfully refreshed from Google Patents.
Patent US3350663A successfully refreshed from Google Patents.
US3350663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latched ferrite circulators
Assignee: RCA Corp
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Filing: 1966-01-27
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Granted: 1967-10-31
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Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Wieslaw W Siekanowicz
- 👤 William A Schilling
- 👤 Bardash Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:58
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/32; H01P1/38; H01P1/383; H01P1/387
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A CIRCULATOR COMPRISING, AT LEAST THREE TRANSMISSION LINES COUPLED TO ONE ANOTHER AT A COMMON REGION, A FERRITE UNIT POSITIONED AND CENTERED SOLELY WITHIN SAID COMMON REGION WITH ITS AXIS PERPENDICULAR TO THE CENTRAL AXIS OF EACH OF SAID TRANSMISSION LINES, AT LEAST ONE MAGNETIZING LOOP PASSING IN ITS ENTIRELY WITHIN SAID FERRITE UNIT AND LOOPING AROUND THE CENTRAL PORTION OF SAID FERRITE UNIT TO PRODUCE A MAGNETIC FLUX FLOW THROUGH THE CENTER PORTION OF SAID FERRITE UNIT TO MAGNETIZE IT AT A REMANENT STATE WHEN PULSE OF CURRENT IS PASSED THROUGH SAID LOOP AND TERMINATED, SAID FERRITE UNIT INCLUDING A MAGNETIC PORTION WITHIN SAID MAGNETIZING LOOP FOR PASSING SAID FLUX FLOW, SAID FERRITE UNIT PROVIDING A CLOSED MAGNETIC PATH FOR THE RETURN FLUX FLOW THROUGH THE END PORTIONS OF SAID FERRITE UNIT.
Claim 2
Dependent Claim
133 words
A CIRCULATOR COMPRISING, AT LEAST THREE TRANSMISSION LINES COUPLED TO ONE ANOTHER AT A COMMON REGION, A FERRITE UNIT POSITIONED AND CENTERED SOLELY WITHIN SAID COMMON REGION WITH ITS AXIS PERPENDICULAR TO THE CENTRAL AXIS OF EACH OF SAID TRANSMISSION LINES, AT LEAST ONE MAGNETIZING LOOP PASSING IN ITS ENTIRELY WITHIN SAID FERRITE UNIT AND LOOPING AROUND THE CENTRAL PORTION OF SAID FERRITE UNIT TO PRODUCE A MAGNETIC FLUX FLOW THROUGH THE CENTER PORTION OF SAID FERRITE UNIT TO MAGNETIZE IT AT A REMANENT STATE WHEN PULSE OF CURRENT IS PASSED THROUGH SAID LOOP AND TERMINATED, SAID FERRITE UNIT INCLUDING A MAGNETIC PORTION WITHIN SAID MAGNETIZING LOOP FOR PASSING SAID FLUX FLOW, SAID FERRITE UNIT PROVIDING A CLOSED MAGNETIC PATH FOR THE RETURN FLUX FLOW THROUGH THE END PORTIONS OF SAID FERRITE UNIT.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |