US3184690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrum balanced modulator
Assignee: General Dynamics Corp
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Filing: 1961-07-28
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Granted: 1965-05-18
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Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
- 👤 John E Garland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:35
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/52; H03C1/54; H03C1/56; H03C1/58
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
IN COMBINATION IN A BALANCED MODULATOR, A CENTER TAPPED INPUT TRANSFORMER WINDING, A CENTER TAPPED OUT PUT TRANSFORMER WINDING, A FIRST DIODE CONNECTED BETWEEN CORRESPONDING FIRST TERMINALS OF SAID WINDINGS, A SECOND DIODE COUPLED BETWEEN THE REMAINING TERMINALS OF SAID WINDINGS, A CARRIER FREQUENCY SOURCE COUPLED BETWEEN SAID CENTER TAPS, A SIGNAL SOURCE COUPLED IN PUSH-PULL ACROSS ONE WINDING, AND A CONDENSER OF PREDETERMINED CAPACITY COUPLED BETWEEN THE ANODE TERMINAL OF SAID DIODE AND THE CATHODE TERMINAL OF THE OTHER DIODE FOR PRODUCING A CARRIER FREQUENCY VOLTAGE OF PREDETERMINED LEVEL ACROSS THE TERMINALS TO SAID OUTPUT TRANSFORMER WINDING.
References Cited (Backward Citations)
US2738462A
Cited
US2955266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |