US2591350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling-wave electron reaction device
Assignee: Raytheon Co
•
Filing: 1947-04-26
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Granted: 1952-04-01
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Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 Elmer J Gorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:02
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2233126A
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US2122538A
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US2242888A
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US2289756A
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US2241976A
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US2300052A
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US2409991A
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US2408903A
Cited
US2454094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |