Patent US2521732A successfully refreshed from Google Patents.
US2521732A
Expired / Lapsed
US
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Rotating antenna scanning system
Assignee: Individual
•
Filing: 1944-10-25
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Granted: 1950-09-12
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Expires: 1964-10-25
Abstract
No abstract record available.
Inventors
- 👤 Kline Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:51
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/24; H01Q3/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932469A
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US2108867A
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US2115791A
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US2205560A
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US2206683A
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US2424982A
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US2415242A
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US2423508A
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US2484822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |