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US3562672A
Expired / Lapsed
US
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Microwave pulse-modulating device
Assignee: NEC Corp
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Filing: 1968-10-15
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Granted: 1971-02-09
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Expires: 1988-10-15
Abstract
Abstract A MICROWAVE PULSE MODULATOR IS DESCRIBED WHICH UTILIZES A GUNN DIODE IN ELECTROMAGNETIC VARIABLE ATTENUATION RELATIONSHIP WITH A SOURCE OF MIRCOSAVE ENERGY AND WHICH IS BIASED BY A MODULATION VOLTAGE WHICH VARIES BETWEEN A MAXIMUM AND A MINIMUM VALUE WITH THE MAXIMUM LEVEL BEING CHOSEN LARGER THAN THE THRESHOLD VOLTAGE OF THE DIODE AND THE MINIMUM LEVEL BEING CHOSEN BELOW THE THRESHOLD LEVEL.
Inventors
- 👤 Shigetoki Sugimoto
- 👤 Tadahiko Sugiura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:24
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/145
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |