US2934666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun
Assignee: Individual
•
Filing: 1956-12-31
•
Granted: 1960-04-26
•
Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Terry M Shrader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:48
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/06; H01B; H01B3/00; H01B3/18; H01B3/48; H01B3/485; H01J3/00; H01J3/02; H01J3/029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2567674A
Cited
US2707758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |