Patent US3214704A successfully refreshed from Google Patents.
US3214704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplification of short and ultra short electromagnetic waves
Assignee: Siemens and Halske AG
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Filing: 1959-12-07
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Granted: 1965-10-26
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Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Holzwarth Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:43
CPC Classifications
H; H03; H03F; H03F11/00; H03F7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN AMPLIFIER ARRANGEMENT FOR LOW NOISE LEVEL AMPLIFICATION OF SHORT AND ULTRA SHORT ELECTROMAGNETIC WAVES, COMPRISING A REACTANCE MODULATOR AND MEANS FOR CONDUCTING WAVES THERETO WHICH ARE TO BE AMPLIFIED, AN OSSILLATOR, THE FREQUENCY OF WHICH IS HIGHER THAN THE WAVES TO BE AMPLIFIED, OPERATIVELY CONNECTED TO SAID REACTANCE MODULATOR WITH THE OUTPUT FROM THE LATTER INCLUDING SIDE BANDS ABOVE AND BELOW THE OSCILLATOR FREQUENCY, A FREQUENCY CONVERTER, A SIDE BAND FILTER OPERATIVELY CONNECTING THE OUTPUT OF SAID REACTANCE MODULATOR TO SAID FRE-
Claim 2
Dependent Claim
83 words
AN AMPLIFIER ARRANGEMENT FOR LOW NOISE LEVEL AMPLIFICATION OF SHORT AND ULTRA SHORT ELECTROMAGNETIC WAVES, COMPRISING A REACTANCE MODULATOR AND MEANS FOR CONDUCTING WAVES THERETO WHICH ARE TO BE AMPLIFIED, AN OSSILLATOR, THE FREQUENCY OF WHICH IS HIGHER THAN THE WAVES TO BE AMPLIFIED, OPERATIVELY CONNECTED TO SAID REACTANCE MODULATOR WITH THE OUTPUT FROM THE LATTER INCLUDING SIDE BANDS ABOVE AND BELOW THE OSCILLATOR FREQUENCY, A FREQUENCY CONVERTER, A SIDE BAND FILTER OPERATIVELY CONNECTING THE OUTPUT OF SAID REACTANCE MODULATOR TO SAID FRE-
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |