Patent US2901599A successfully refreshed from Google Patents.
US2901599A
Expired / Lapsed
US
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Amplitude-modulated radio transmitter combining two constant amplitude phase modulated signals
Assignee: Hunter Fan Co
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Filing: 1954-07-16
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Granted: 1959-08-25
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Expires: 1974-07-16
Abstract
No abstract record available.
Inventors
- 👤 Eric M Leyton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:16
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/38; H04N5/40; H03; H03C; H03C1/00; H03C1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892383A
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US1946308A
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US2053014A
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US2441387A
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US2535257A
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US2566876A
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US2480201A
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US2469747A
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US2581456A
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US2614246A
Cited
US2648766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |