US3078420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic ferrite loop antenna loading
Assignee: Avco Manufacturing Corp
•
Filing: 1958-09-05
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Granted: 1963-02-19
•
Expires: 1978-09-05
Abstract
No abstract record available.
Inventors
- 👤 Emmery J H Bussard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:27
CPC Classifications
H; H03; H03G; H03G9/00; H03G9/20; H03G9/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE COMBINATION COMPRISING: A HIGH Q TRANSFORMER TUNED TO A PREDETERMINED RESONANT FREQUENCY AND HAVING A PREDETERMINED BANDWIDTH, SAID TRANSFORMER HAVING A HIGH IMPEDANCE INPUT WINDING AND A RELATIVELY LOW IMPEDANCE OUTPUT WINDING BOTH WOUND ON A SATURABLE MAGNETIC CORE; A VARIABLE IMPEDANCE DEVICE HAVING A LOW IMPEDANCE INPUT CIRCUIT CONNECTED ACROSS SAID LOW IMPEDANCE OUTPUT WINDING; A SOURCE OF DIRECT CURRENT POWER FOR VARYING THE INPUT IMPEDANCE OF SAID VARIABLE IMPEDANCE DEVICE IN ACCORDANCE WITH A VARYING CONDITION; AND MEANS CONTROLLED BY SAID SOURCE OF DIRECT CURRENT POWER FOR ADJUSTING THE
Claim 2
Dependent Claim
92 words
THE COMBINATION COMPRISING: A HIGH Q TRANSFORMER TUNED TO A PREDETERMINED RESONANT FREQUENCY AND HAVING A PREDETERMINED BANDWIDTH, SAID TRANSFORMER HAVING A HIGH IMPEDANCE INPUT WINDING AND A RELATIVELY LOW IMPEDANCE OUTPUT WINDING BOTH WOUND ON A SATURABLE MAGNETIC CORE; A VARIABLE IMPEDANCE DEVICE HAVING A LOW IMPEDANCE INPUT CIRCUIT CONNECTED ACROSS SAID LOW IMPEDANCE OUTPUT WINDING; A SOURCE OF DIRECT CURRENT POWER FOR VARYING THE INPUT IMPEDANCE OF SAID VARIABLE IMPEDANCE DEVICE IN ACCORDANCE WITH A VARYING CONDITION; AND MEANS CONTROLLED BY SAID SOURCE OF DIRECT CURRENT POWER FOR ADJUSTING THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |