Patent DE299064C successfully refreshed from Google Patents.
US2876341A
Expired / Lapsed
US
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Fault alarm radio repeater system
Assignee: Western Union Telegraph Co
•
Filing: 1953-06-11
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Granted: 1959-03-03
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Expires: 1973-06-11
Abstract
No abstract record available.
Inventors
- 👤 Harry C Likel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:59
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2257094A
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US2296384A
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US2287044A
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US2344813A
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US2460789A
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US2514367A
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US2524861A
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US2699495A
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US2691065A
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US2706286A
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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) | 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 |