Patent US3215942A successfully refreshed from Google Patents.
US3215942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact pump signal supply circuit for traveling-wave parametric amplifiers
Assignee: Hazeltine Research Inc
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Filing: 1961-02-01
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Granted: 1965-11-02
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Expires: 1981-02-01
Abstract
No abstract record available.
Inventors
- 👤 Rosa Richard La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:22
CPC Classifications
H; H03; H03F; H03F7/00; H03F7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A PUMP SIGNAL SUPPLY CIRCUIT FOR A TRAVELING-WAVE PARAMETRIC AMPLIFIER REQUIRING PUMP SIGNAL FEEDS WITH APPARENT PHASE DIFFERENCES WHICH EXCEED ONE PERIOD OF THE PUMP FREQUENCY COMPRISING: A SOURCE OF PUMP FREQUENCY SIGNALS; A DELAY LINE FOR PUMP SIGNALS CAPABLE OF PRODUCING A TOTAL PHASE DELAY OF NOT MORE THAN ONE SAID PERIOD COUPLED TO SAID SOURCE AND HAVING A PLURALITY OF OUTPUT TAPS FOR FEEDING PUMP ENERGY TO EACH AMPLIFICATION ELEMENT OF A TRAVELING-WAVE PARAMETRIC AMPLIFIER AT THE CORRECT PHASE REQUIRED FOR EACH PARTICULAR ELEMENT, THE PUMP SIGNALS WITH APPARENT PHASE DIFFERENCES WHICH EXCEED ONE SAID PERIOD BEING SUPPLIED BY PUMP SIGNALS AT CORRESPONDING PHASES NOT EXCEEDING ONE PERIOD; AND PUMP SIGNAL TERMINATION MEANS COUPLED TO SAID DELAY LINE.
Claim 2
Dependent Claim
120 words
A PUMP SIGNAL SUPPLY CIRCUIT FOR A TRAVELING-WAVE PARAMETRIC AMPLIFIER REQUIRING PUMP SIGNAL FEEDS WITH APPARENT PHASE DIFFERENCES WHICH EXCEED ONE PERIOD OF THE PUMP FREQUENCY COMPRISING: A SOURCE OF PUMP FREQUENCY SIGNALS; A DELAY LINE FOR PUMP SIGNALS CAPABLE OF PRODUCING A TOTAL PHASE DELAY OF NOT MORE THAN ONE SAID PERIOD COUPLED TO SAID SOURCE AND HAVING A PLURALITY OF OUTPUT TAPS FOR FEEDING PUMP ENERGY TO EACH AMPLIFICATION ELEMENT OF A TRAVELING-WAVE PARAMETRIC AMPLIFIER AT THE CORRECT PHASE REQUIRED FOR EACH PARTICULAR ELEMENT, THE PUMP SIGNALS WITH APPARENT PHASE DIFFERENCES WHICH EXCEED ONE SAID PERIOD BEING SUPPLIED BY PUMP SIGNALS AT CORRESPONDING PHASES NOT EXCEEDING ONE PERIOD; AND PUMP SIGNAL TERMINATION MEANS COUPLED TO SAID DELAY LINE.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |