Patent US2876448A successfully refreshed from Google Patents.
US2876448A
Expired / Lapsed
US
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Multiple decoupled antennae connected to radio by different length feeder for impedance mismatch reduction
Assignee: RADIO PATENTS Co
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Filing: 1954-03-30
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Granted: 1959-03-03
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Expires: 1974-03-30
Abstract
No abstract record available.
Inventors
- 👤 Guanella Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:47
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/48; H03H7/487
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1874966A
Cited
US2224898A
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US2236393A
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US2245693A
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US2311467A
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US2455403A
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US2570579A
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US2661424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |