US3158779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling-wave electronic microwave interaction guide devices
Assignee: NEC Corp
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Filing: 1960-09-29
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Granted: 1964-11-24
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Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 Ayaki Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:08
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN AN ELECTRONIC MICROWAVE GUIDE DEVICE, A RIDGE WAVE GUIDE COMPRISING A CONDUCTIVE ENVELOPE HAVING AN INPUT AND AN OUTPUT END; A LONGITUDINAL, SUBSTANTIALLY CYLINDRICAL SPACE REGION AND TWO SPACED GAP REGIONS EXTENDING FROM AND COMMUNICATING WITH SAID SPACE REGION, AND A LONGITUDINAL CATHODE MOUNTED WITHIN SAID LONGITUDINAL SPACE REGION ALONG THE LONGITUDINAL AXIS OF SAID CYLINDRICAL SPACE REGION, WHEREBY ELECTRONS EMITTED BY SAID CATHODE INTERACT WITH MICROWAVE SIGNALS PROPAGATED ALONG SAID RIDGE WAVE GUIDE TO IMPART AMPLIFICATION ENERGY TO THE SIGNALS; SAID CYLINDRICAL SPACE REGION AND SAID GAP REGIONS COMMUNICATING WITH SAID INPUT AND OUTPUT ENDS; SAID CYLINDRICAL SPACE REGION BEING CONTINUOUS AND SUBSTANTIALLY STRAIGHT BETWEEN SAID INPUT AND OUTPUT ENDS; THE WIDTH OF SAID GAP REGIONS ADJACENT SAID CYLINDRICAL SPACE REGION BEING SUBSTANTIALLY LESS THAN THE DIAMETER OF SAID CYLINDRICAL SPACE REGION; THE LENGTH OF SAID GAP REGIONS BEING EQUAL TO THE LENGTH OF SAID CYLINDRICAL SPACE REGION.
Claim 2
Dependent Claim
150 words
IN AN ELECTRONIC MICROWAVE GUIDE DEVICE, A RIDGE WAVE GUIDE COMPRISING A CONDUCTIVE ENVELOPE HAVING AN INPUT AND AN OUTPUT END; A LONGITUDINAL, SUBSTANTIALLY CYLINDRICAL SPACE REGION AND TWO SPACED GAP REGIONS EXTENDING FROM AND COMMUNICATING WITH SAID SPACE REGION, AND A LONGITUDINAL CATHODE MOUNTED WITHIN SAID LONGITUDINAL SPACE REGION ALONG THE LONGITUDINAL AXIS OF SAID CYLINDRICAL SPACE REGION, WHEREBY ELECTRONS EMITTED BY SAID CATHODE INTERACT WITH MICROWAVE SIGNALS PROPAGATED ALONG SAID RIDGE WAVE GUIDE TO IMPART AMPLIFICATION ENERGY TO THE SIGNALS; SAID CYLINDRICAL SPACE REGION AND SAID GAP REGIONS COMMUNICATING WITH SAID INPUT AND OUTPUT ENDS; SAID CYLINDRICAL SPACE REGION BEING CONTINUOUS AND SUBSTANTIALLY STRAIGHT BETWEEN SAID INPUT AND OUTPUT ENDS; THE WIDTH OF SAID GAP REGIONS ADJACENT SAID CYLINDRICAL SPACE REGION BEING SUBSTANTIALLY LESS THAN THE DIAMETER OF SAID CYLINDRICAL SPACE REGION; THE LENGTH OF SAID GAP REGIONS BEING EQUAL TO THE LENGTH OF SAID CYLINDRICAL SPACE REGION.
References Cited (Backward Citations)
US2115521A
Cited
US2414121A
Cited
US2402184A
Cited
US2406635A
Cited
US2542797A
Cited
US2698398A
Cited
US2959707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |