US3559091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broadband interstage coupling circuit
Assignee: General Electric Co
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Filing: 1968-01-04
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Granted: 1971-01-26
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Expires: 1988-01-04
Abstract
Abstract A BROADBAND INTERSTAGE CIRCUIT FOR COUPLING TWO STAGES OF AMPLIFICATION IN THE VHF AND UHF REGION, WHEREIN AN IMPEDANCE MATCH IS PROVIDED OVER A FREQUENCY BAND ON THE ORDER OF SEVERAL HUNDRED MHZ. THE CIRCUIT IS COMPOSED OF A TRANSMISSION LINE TRANSFORMER HAVING A CAPACITOR CONNECTED BETWEEN ONE OF THE TRANSFORMER TERMINALS AND GROUND. THE CIRCUIT, BEING ESSENTIALLY NON-DISSIPATIVE, IS APPROPRIATE FOR USE WITH LARGE SIGNALS AND HIGH POWER LEVELS, UP TO MANY TENS OF WATTS.
Inventors
- 👤 John W Lunden
- 👤 James V O'hern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:53
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/56; H03F1/565; H03F1/42; H03F1/48
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |