Patent US2575377A successfully refreshed from Google Patents.
US2575377A
Expired / Lapsed
US
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Short wave antenna
Assignee: Individual
•
Filing: 1945-11-13
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Granted: 1951-11-20
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Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 Robert J Wohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:03
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1581133A
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US1684009A
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US1828910A
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US2005805A
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US2125804A
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US2258953A
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US2369556A
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US2287220A
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US2344171A
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US2482767A
Cited
US2463547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |