US2632127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron apparatus for highfrequency performance
Assignee: Individual
•
Filing: 1951-03-05
•
Granted: 1953-03-17
•
Expires: 1971-03-05
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:32
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179205A
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US2307693A
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US2454652A
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US2416914A
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US2403562A
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US2449339A
Cited
US2472779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |