US3011085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling wave tube
Assignee: Raytheon Co
•
Filing: 1955-09-30
•
Granted: 1961-11-28
•
Expires: 1975-09-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:30
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2801361A
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US2794146A
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GB699631A
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US2683238A
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US2817037A
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US2800604A
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US2837696A
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US2806973A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |