Patent US2679580A successfully refreshed from Google Patents.
US2679580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide band receiver-transmitter
Assignee: United States, WAR, Secretary of
•
Filing: 1945-01-24
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Granted: 1954-05-25
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Expires: 1965-01-24
Abstract
No abstract record available.
Inventors
- 👤 Ware Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:07
CPC Classifications
H; H03; H03D; H03D11/00; H03D11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1455767A
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US2202699A
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US2163645A
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US2154723A
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US2247212A
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US2320428A
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US2419571A
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US2415359A
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US2429513A
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US2457134A
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US2460202A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |