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US2589813A
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US
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Antenna positioning system
Assignee: United States, WAR, Secretary of
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Filing: 1945-05-30
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Granted: 1952-03-18
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Expires: 1965-05-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert I Hulsizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66; G01S13/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1915328A
Cited
US2138966A
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US2257757A
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US2247029A
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US2446024A
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US2416166A
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US2458175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |