US2916649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun structure
Assignee: TDK Micronas GmbH
•
Filing: 1957-06-12
•
Granted: 1959-12-08
•
Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:24
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82; H01J23/00; H01J23/02; H01J23/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |