US2925518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling wave device
Assignee: Raytheon Co
•
Filing: 1958-06-16
•
Granted: 1960-02-16
•
Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 John M Osepchuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:32
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/28; H01J25/00; H01J25/34; H01J25/42; H01J25/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB699890A
Cited
US2827588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |