US2932755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun and cathode
Assignee: Applied Radiation Corp
•
Filing: 1956-01-30
•
Granted: 1960-04-12
•
Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Morris R Jeppson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
H; H01; H01J; H01J3/00; H01J3/02; H01J3/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2410822A
Cited
GB658747A
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US2471298A
Cited
US2432789A
Cited
US2436265A
Cited
US2545884A
Cited
US2666160A
Cited
US2611883A
Cited
US2625670A
Cited
US2811667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |