US3075154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclotron wave parametric amplifier with decreased magnetic bias
Assignee: AT&T Inc
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Filing: 1961-12-29
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Granted: 1963-01-22
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Johan W Kluver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:22
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PARAMETRIC AMPLIFIER COMPRISING: MEANS FOR FORMING AND PROJECTING AN ELECTRON BEAM HAVING AN INHERENT PERIODICITY; MEANS FOR FOCUSSING SAID BEAM COMPRISING A MAGNETIC FIELD WHICH IS PARALLEL WITH SAID BEAM; MEANS FOR MODULATING SAID BEAM WITH SIGNAL FREQUENCY ENERGY COMPRISING A RESONATOR HAVING P NUMBER OF POLES EXTENDING RADIALLY TOWARD SAID BEAM, WHERE P IS ANY EVEN NUMBER GREATER THAN TWO, SAID SIGNAL WAVE HAVING A PERIODICITY IN SYNCHRONISM WITH THE PERIODICITIES OF SAID BEAM; A SOURCE OF PUMP ENERGY HAVING A FREQUENCY SUBSTANTIALLY EQUAL TO TWICE SAID SIGNAL FREQUENCY; MEANS COUPLED TO SAID SOURCE FOR PARAMETRICALLY AMPLI-
Claim 2
Dependent Claim
99 words
A PARAMETRIC AMPLIFIER COMPRISING: MEANS FOR FORMING AND PROJECTING AN ELECTRON BEAM HAVING AN INHERENT PERIODICITY; MEANS FOR FOCUSSING SAID BEAM COMPRISING A MAGNETIC FIELD WHICH IS PARALLEL WITH SAID BEAM; MEANS FOR MODULATING SAID BEAM WITH SIGNAL FREQUENCY ENERGY COMPRISING A RESONATOR HAVING P NUMBER OF POLES EXTENDING RADIALLY TOWARD SAID BEAM, WHERE P IS ANY EVEN NUMBER GREATER THAN TWO, SAID SIGNAL WAVE HAVING A PERIODICITY IN SYNCHRONISM WITH THE PERIODICITIES OF SAID BEAM; A SOURCE OF PUMP ENERGY HAVING A FREQUENCY SUBSTANTIALLY EQUAL TO TWICE SAID SIGNAL FREQUENCY; MEANS COUPLED TO SAID SOURCE FOR PARAMETRICALLY AMPLI-
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |