Patent US2557967A successfully refreshed from Google Patents.
US2557967A
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US
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Scanning apparatus for radar systems
Assignee: Unisys Corp
•
Filing: 1945-10-02
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Granted: 1951-06-26
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Expires: 1965-10-02
Abstract
No abstract record available.
Inventors
- 👤 Harry K Hudson
- 👤 Robert J Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:08
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/08; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024; Y10T74/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2410666A
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US2412612A
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US2410831A
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US2407305A
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US2415103A
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US2415678A
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US2407310A
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US2446024A
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US2410827A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |