Patent US3150323A successfully refreshed from Google Patents.
US3150323A
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Coincident frequency tracker in which oscillation generator generates two distinct frequencies alternately
Assignee: General Precision Inc
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Filing: 1958-02-26
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Granted: 1964-09-22
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Expires: 1978-02-26
Abstract
No abstract record available.
Inventors
- 👤 Stavis Gus
- 👤 George R Gamertsfelder
- 👤 William B Lurie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:34
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/585; G01S13/586
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A FREQUENCY TRACKER FOR FOLLOWING AND MEASURING AN INPUT SIGNAL CONSISTING OF A BAND OF FREQUENCIES COMPRISING, A MODULATOR, MEANS FOR IMPRESSING SAID INPUT SIGNAL ON SAID MODULATOR, MEANS FOR ALTERNATELY IMPRESSING ON SAID MODULATOR TWO ALTERNATING VOLTAGES OF DIFFERENT FREQUENCIES WHEREBY EACH WHEN MIXED IN SAID MODULATOR WITH SAID INPUT SIGNAL PROVIDES A GROUP OF SIGNALS INCLUDING AN UPPER AND A LOWER SIDE BAND SIGNAL AT THE OUTPUT OF THE MODULATOR, AND MEANS RESPONSIVE TO THE UPPER SIDE BAND OF ONE GROUP OF SIGNALS AND TO THE LOWER SIDE BAND OF THE OTHER GROUP FOR ADJUSTING THE FREQUENCY DIFFERENCE OF SAID TWO ALTERNATING VOLTAGES TO TWICE THE FREQUENCY OF SAID CHANGEABLE FREQUENCY INPUT SIGNAL.
Claim 2
Dependent Claim
115 words
A FREQUENCY TRACKER FOR FOLLOWING AND MEASURING AN INPUT SIGNAL CONSISTING OF A BAND OF FREQUENCIES COMPRISING, A MODULATOR, MEANS FOR IMPRESSING SAID INPUT SIGNAL ON SAID MODULATOR, MEANS FOR ALTERNATELY IMPRESSING ON SAID MODULATOR TWO ALTERNATING VOLTAGES OF DIFFERENT FREQUENCIES WHEREBY EACH WHEN MIXED IN SAID MODULATOR WITH SAID INPUT SIGNAL PROVIDES A GROUP OF SIGNALS INCLUDING AN UPPER AND A LOWER SIDE BAND SIGNAL AT THE OUTPUT OF THE MODULATOR, AND MEANS RESPONSIVE TO THE UPPER SIDE BAND OF ONE GROUP OF SIGNALS AND TO THE LOWER SIDE BAND OF THE OTHER GROUP FOR ADJUSTING THE FREQUENCY DIFFERENCE OF SAID TWO ALTERNATING VOLTAGES TO TWICE THE FREQUENCY OF SAID CHANGEABLE FREQUENCY INPUT SIGNAL.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |