Patent US3913564A successfully refreshed from Google Patents.
US2485409A
Expired / Lapsed
US
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Imparting high energy to charged particles
Assignee: General Electric Co
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Filing: 1946-01-05
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Granted: 1949-10-18
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Expires: 1966-01-05
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Pollock
- 👤 Willem F Westendorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:31
CPC Classifications
H; H05; H05H; H05H13/00; H05H13/04; H05H7/00; H05H7/14; H05H7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |