Patent US2460109A successfully refreshed from Google Patents.
US2460109A
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US
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Electrical translating device
Assignee: AT&T Inc
•
Filing: 1941-03-25
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Granted: 1949-01-25
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Expires: 1961-03-25
Abstract
No abstract record available.
Inventors
- 👤 George C Southworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:21
CPC Classifications
H; H03; H03D; H03D1/00; H03D1/08; H01; H01G; H01G7/00; H01G7/02; H03C; H03C5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1999686A
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US1885728A
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US2129711A
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US2106768A
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Cited
US2163740A
Cited
US2153728A
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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) | 1952-01-25 | 1952-07-26 | 1953-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-25 | 1956-07-26 | 1957-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-25 | 1960-07-26 | 1961-01-25 | $7700.00 | Window Closed / Lapsed |