Patent US2637818A successfully refreshed from Google Patents.
US2637818A
Expired / Lapsed
US
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Electron accelerator
Assignee: Individual
•
Filing: 1951-07-21
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Granted: 1953-05-05
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Expires: 1971-07-21
Abstract
No abstract record available.
Inventors
- 👤 Gund Konrad
- 👤 Berger Hans
- 👤 Scheer Max Martin
- 👤 Schittenhelm Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
H; H05; H05H; H05H11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2257050A
Cited
US2331586A
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US2331788A
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US2394070A
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US2486503A
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US2474422A
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US2585549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |