US2628342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductance coil
Assignee: Western Union Telegraph Co
•
Filing: 1945-09-25
•
Granted: 1953-02-10
•
Expires: 1965-09-25
Abstract
No abstract record available.
Inventors
- 👤 Roland C Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1956334A
Cited
US654390A
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US1455199A
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US1634923A
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US1702159A
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US1748993A
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US1722362A
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US1713941A
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US1823327A
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US1878606A
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US2113603A
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US1854401A
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US2064771A
Cited
US1998378A
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US2078422A
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GB440791A
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US2180413A
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US2158613A
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US2220126A
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US2317724A
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US2327784A
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US2372074A
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US2350029A
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US2318095A
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US2388848A
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US2274296A
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US2324853A
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US2367591A
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US2400559A
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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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |