US3588747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wideband composite frequency modulator
Assignee: General Electric Co
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Filing: 1968-10-16
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Granted: 1971-06-28
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Expires: 1988-10-16
Abstract
Abstract A WIDEBAND COMPOSITE FREQUENCY MODULATION SYSTEM IS DISCLOSED, IN WHICH A CRYSTAL OSCILLATOR IS FREQUENCY MODULATED PRIMARILY BY THE LOWER FREQUENCY RANGE OF THE MODULATION SIGNAL AND THE RESULTING SIGNAL IS PHASE MODULATED PRIMARILY BY THE HIGHER FREQUENCY RANGE OF THE MODULATION SIGNAL, RESULTING IN WIDEBAND FREQUENCY MODULATION OF A CRYSTAL-CONTROLLED CARRIER SIGNAL.
Inventors
- 👤 Frank W Rusho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:58
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/22; H03C3/222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |