US3199047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal generator
Assignee: Individual
•
Filing: 1961-08-21
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Granted: 1965-08-03
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Le Roy T Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:55
CPC Classifications
H; H03; H03B; H03B21/00; H03B21/01; H03B21/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
220 words
IN A SIGNAL GENERATOR, MEANS FOR GENERATING A FIRST SIGNAL HAVING A PRESELECTED PRECISION FREQUENCY, MEANS FOR GENERATING A SECOND SIGNAL HAVING A PRECISION FIXED FREQUENCY INDEPENDENT OF AND DIFFERING FROM THE FREQUENCY OF THE FIRST SIGNAL, MEANS OPERATIVELY CONNECTED TO THE MEANS FOR GENERATING A SECOND SIGNAL FOR PRECISELY ATTENUATING THE SECOND SIGNAL, AND MEANS OPERATIVELY COUPLED TO THE MEANS FOR GENERATING A FIRST SIGNAL AND TO THE MEANS FOR ATTENUATING THE SECOND SIGNAL FOR MIXING SAID FIRST AND SECOND SIGNALS TO PROVIDE A COMBINED SIGNAL HAVING A PLURALITY OF PRECISION FREQUENCIES WITH UPPER AND LOWER PRECISION SIDE BAND FREQUENCIES SEPARATED IN FREQUENCY FROM THE FREQUENCY OF THE FIRST SIGNAL BY A FREQUENCY EQUAL TO THE FREQUENCY OF THE SECOND SIGNAL, SAID MEANS OPERATIVELY COUPLED TO THE MEANS FOR GENERATING A FIRST SIGNAL AND TO THE MEANS FOR ATTENUATING THE SECOND SIGNAL INCLUDING A SERIES RESONANT CIRCUIT FOR ELIMINATING HARMONICS OF THE SECOND SIGNAL, SAID SERIES RESONANT CIRCUIT INCLUDING FIRST AND SECOND SERIALLY CONNECTED COMPONENTS, SAID FIRST COMPONENT BEING COUPLED TO THE MEANS FOR PRECISELY ATTENUATING THE SECOND SIGNAL, SAID S ECOND COMPONENT BEING COUPLED TO SAID MEANS FOR GENERATING A FIRST SIGNAL, THE OUTPUT FROM THE JUNCTION BETWEEN THE FIRST AND SECOND COMPONENTS BEING CONNECTED TO THE INPUT OF THE MEANS FOR MIXING SAID FIRST AND SECOND SIGNALS.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |