US2600509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling wave tube
Assignee: CIE GENERALE DE T S F
•
Filing: 1948-07-15
•
Granted: 1952-06-17
•
Expires: 1968-07-15
Abstract
No abstract record available.
Inventors
- 👤 Lerbs Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:47
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/42; H01J25/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2122538A
Cited
US2289756A
Cited
US2241976A
Cited
US2300052A
Cited
US2511407A
Cited
US2541843A
Cited
US2516944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |