US2888588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun structure
Assignee: General Electric Co
•
Filing: 1953-04-03
•
Granted: 1959-05-26
•
Expires: 1973-04-03
Abstract
No abstract record available.
Inventors
- 👤 Dichter Channing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:58
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82; H01J29/58; H01J29/62; H01J3/00; H01J3/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2135941A
Cited
US2173498A
Cited
GB521803A
Cited
US2391780A
Cited
US2436265A
Cited
US2443916A
Cited
US2540621A
Cited
US2666162A
Cited
US2581446A
Cited
US2582454A
Cited
US2644906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |