US2482769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency apparatus
Assignee: Unisys Corp
•
Filing: 1944-12-28
•
Granted: 1949-09-27
•
Expires: 1964-12-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:02
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/22; H01J25/24; F; F16; F16F; F16F15/00; F16F15/10; F16F15/12; H01J25/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511913A
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US2128232A
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US2128236A
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USRE22506E
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US2190511A
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US2190515A
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US2220556A
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US2259690A
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US2416303A
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US2402983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |