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Patent US3045237A successfully refreshed from Google Patents.
US3045237A
Expired / Lapsed
US
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Antenna system having beam control members consisting of array of spiral elements
Assignee: Individual
•
Filing: 1958-12-17
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Granted: 1962-07-17
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Expires: 1978-12-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Marston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q3/00; H01Q3/44; H01Q3/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2464276A
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US2408373A
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US2566703A
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US2663869A
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US2736895A
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US2773254A
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US2935746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |