Patent US2943189A successfully refreshed from Google Patents.
US2943189A
Expired / Lapsed
US
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Folded dipole having a direct current output
Assignee: Individual
•
Filing: 1956-03-23
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Granted: 1960-06-28
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Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 Lloyd R Crump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:47
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/247; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1550571A
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US1559992A
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US1966491A
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US2266038A
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US2197494A
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US2307012A
Cited
US2543085A
Cited
US2699493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |