US3004183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun
Assignee: TDK Micronas GmbH
•
Filing: 1957-12-03
•
Granted: 1961-10-10
•
Expires: 1977-12-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:36
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2146017A
Cited
US2183309A
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US2174853A
Cited
US2224597A
Cited
US2464076A
Cited
US2745979A
Cited
US2740913A
Cited
US2784340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |