US3248652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized beat frequency oscillator for multi-frequency receiver
Assignee: Individual
•
Filing: 1962-07-20
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Granted: 1966-04-26
•
Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Kruse Niels Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:12
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN OSCILLATOR CIRCUIT FOR PROVIDING A TEMPERATURE STABILIZED AND VARIABLE FREQUENCY OUTPUT COMPRISING, A FIRST OSCILLATOR HAVING A NATURAL FREQUENCY F1 AND A NUMBER OF CRYSTAL MEANS CONNECTED TO CONTROL SAID FREQUENCY OF SAID FIRST OSCILLATOR, A SECOND OSCILLATOR HAVING A NATURAL FREQUENCY F2 AND A NUMBER OF CRYSTAL MEANS CONNECTED TO CONTROL SAID FREQUENCY OF SAID SECOND OSCILLATOR AND WHEREIN F1=F2, SAID CRYSTALS OF SAID FIRST AND SECOND OSCILLATORS BEING OF THE SAME CRYSTAL CUT, VARIABLE REACTANCE MEANS COUPLED TO A NUMBER OF SAID CRYSTALS OF SAID FIRST AND SAID SECOND OSCILLATORS TO CONTROL THE OSCILLATING FREQUENCING OF SAID CRYSTALS, A MIXING STAGE HAVING FIRST AND SECOND INPUTS
Claim 2
Dependent Claim
109 words
AN OSCILLATOR CIRCUIT FOR PROVIDING A TEMPERATURE STABILIZED AND VARIABLE FREQUENCY OUTPUT COMPRISING, A FIRST OSCILLATOR HAVING A NATURAL FREQUENCY F1 AND A NUMBER OF CRYSTAL MEANS CONNECTED TO CONTROL SAID FREQUENCY OF SAID FIRST OSCILLATOR, A SECOND OSCILLATOR HAVING A NATURAL FREQUENCY F2 AND A NUMBER OF CRYSTAL MEANS CONNECTED TO CONTROL SAID FREQUENCY OF SAID SECOND OSCILLATOR AND WHEREIN F1=F2, SAID CRYSTALS OF SAID FIRST AND SECOND OSCILLATORS BEING OF THE SAME CRYSTAL CUT, VARIABLE REACTANCE MEANS COUPLED TO A NUMBER OF SAID CRYSTALS OF SAID FIRST AND SAID SECOND OSCILLATORS TO CONTROL THE OSCILLATING FREQUENCING OF SAID CRYSTALS, A MIXING STAGE HAVING FIRST AND SECOND INPUTS
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |