US3227914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder type slow wave structure having side plates at an angle other than 90deg.
Assignee: General Electric Co
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Filing: 1963-03-18
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Granted: 1966-01-04
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Charles K Birdsall
- 👤 Richard M White
- 👤 Richard W Grow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:00
CPC Classifications
H; H01; H01P; H01P9/00; H01J; H01J23/00; H01J23/16; H01J23/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
IN A HIGH FREQUENCY ENERGY INTERCHANGE DEVICE OF THE TYPE WHICH DEPENDS UPON THE INTERACTION OF AN ELECTRON STREAM PRODUCED BY AN ELECTRON GUN WITH ELECTROMAGNETIC WAVES PROPAGATED DOWN A SLOP WAVE TRANSMISSION LINE ADJACENT THE ELECTRON STREAM, A SLOW WAVE TRANSMISSION LINE, INCLUDING AT LEAST ONE SUBSTANTIALLY PLANAR PORTION HAVING CONDUCTING RUNGS POSITIONED AT RECURRING INTERVALS DOWN THE LENGTH OF SAID SLOW WAVE TRANSMISSION LINE AND SUBSTANTIALLY PLANAR CONDUCTIVE SIDE PLATES POSITIONED NEAR OPPOSITE ENDS OF SAID RUNGS BOTH ABOVE AND BELOW THE PLANE OF SAID RUNGS AND EXTENDING DOWN THE LENGTH OF SAID TRANSMISSION LINE THEREBY FORMING A PART THEREOF, SAID SIDE PLATES FORMING AN ANGLE GREATER THAN NINETY DEGREES AND LESS THAN ONE HUNDRED EIGHTY DEGREES WITH RESPECT TO THE PLANE OF SAID RUNGS.
References Cited (Backward Citations)
US2925567A
Cited
US2954534A
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FR1191327A
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US2976454A
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US2973453A
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US3076909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |