US2898467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron oscillograph
Assignee: Vakutronik VEB
•
Filing: 1956-03-28
•
Granted: 1959-08-04
•
Expires: 1976-03-28
Abstract
No abstract record available.
Inventors
- 👤 Ardenne Manfred Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:20
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932084A
Cited
US2352043A
Cited
US2330930A
Cited
US2292087A
Cited
US2418432A
Cited
US2464396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |