US2644906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam discharge device
Assignee: General Electric Co
•
Filing: 1951-08-11
•
Granted: 1953-07-07
•
Expires: 1971-08-11
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Bondley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2079163A
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US2223040A
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US2306663A
Cited
US2268197A
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US2268194A
Cited
US2310811A
Cited
US2476060A
Cited
US2547415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |