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US2925567A
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Retardation conductor for variable field electronic tubes or the like
Assignee: Siemens and Halske AG
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Filing: 1955-05-09
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Granted: 1960-02-16
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Eichin Werner
- 👤 Veith Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:21
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/26; H01J23/27; H01J23/28; H01J25/00; H01J25/34; H01J25/42; H01J25/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21739E
Cited
FR955557A
Cited
US2566087A
Cited
GB668017A
Cited
FR1025094A
Cited
US2802135A
Cited
FR1074017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |