US3230464A
Expired / Lapsed
US
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High frequency parametric amplifier with integral construction
Assignee: Airtron Inc
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Filing: 1962-09-26
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Granted: 1966-01-18
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Expires: 1982-09-26
Abstract
No abstract record available.
Inventors
- 👤 Martin I Grace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:09
CPC Classifications
H; H03; H03F; H03F7/00; H03F7/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PARAMETRIC AMPLIFIER COMPRISING: A SEALED MICROWAVE CAVITY CONTAINING A NEUTRAL GAS, A PAIR OF SEMICONDUCTOR CAPACITIVE DIODE DICE DISPOSED IN SERIES BACK-TO-BACK RELATIONSHIP WITHIN THE CAVITY WITH THE OPPOSITE TERMINALS OF THE DIODES BEING GROUNDED TO THE CAVITY WALLS, A BALUN FOR INTRODUCING A SIGNAL TO THE AMPLIFIER AND HAVING A CENTRAL AND OUTER CONDUCTOR PENETRATING THE WALL OF THE CAVITY WITH THE CENTRAL CONDUCTOR BEING CONNECTED TO THE JUNCTION OF THE DIODES, SAID DIODE DICE BEING UNHOUSED AND EXPOSED TO THE NEUTRAL GAS WITHIN THE CAVITY, AND MEANS INCLUDING A SEALED WINDOW PROVIDED IN THE CAVITY FOR INTRODUCING A SOURCE OF PUMPING POWER TO ENERGIZE THE DIODES.
Claim 2
Dependent Claim
109 words
A PARAMETRIC AMPLIFIER COMPRISING: A SEALED MICROWAVE CAVITY CONTAINING A NEUTRAL GAS, A PAIR OF SEMICONDUCTOR CAPACITIVE DIODE DICE DISPOSED IN SERIES BACK-TO-BACK RELATIONSHIP WITHIN THE CAVITY WITH THE OPPOSITE TERMINALS OF THE DIODES BEING GROUNDED TO THE CAVITY WALLS, A BALUN FOR INTRODUCING A SIGNAL TO THE AMPLIFIER AND HAVING A CENTRAL AND OUTER CONDUCTOR PENETRATING THE WALL OF THE CAVITY WITH THE CENTRAL CONDUCTOR BEING CONNECTED TO THE JUNCTION OF THE DIODES, SAID DIODE DICE BEING UNHOUSED AND EXPOSED TO THE NEUTRAL GAS WITHIN THE CAVITY, AND MEANS INCLUDING A SEALED WINDOW PROVIDED IN THE CAVITY FOR INTRODUCING A SOURCE OF PUMPING POWER TO ENERGIZE THE DIODES.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |