Patent US2486398A successfully refreshed from Google Patents.
US2486398A
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Velocity modulation device and method
Assignee: Unisys Corp
•
Filing: 1943-05-29
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Granted: 1949-11-01
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Expires: 1963-05-29
Abstract
No abstract record available.
Inventors
- 👤 Feenberg Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:48
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/02; H01J25/10; H01J25/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2167201A
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US2190511A
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US2233299A
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US2280026A
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US2254796A
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US2306875A
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US2305844A
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US2316276A
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US2295680A
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US2303166A
Cited
US2413725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |