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Patent US2991355A successfully refreshed from Google Patents.
US2991355A
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Power cord type antenna system for a wave-signal receiver
Assignee: Zenith Electronics LLC
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Filing: 1958-01-27
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Granted: 1961-07-04
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Expires: 1978-01-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Spindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:14
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/44; H01Q1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1745096A
Cited
US1970986A
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US2218830A
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US2581983A
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US2611082A
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US2520811A
Cited
GB675096A
Cited
US2611080A
Cited
GB702525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |