Patent US2468574A successfully refreshed from Google Patents.
US2468574A
Expired / Lapsed
US
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Selective control of printer motors at outlying telegraph stations
Assignee: AT&T Teletype Corp
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Filing: 1945-03-23
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Granted: 1949-04-26
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Expires: 1965-03-23
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Russnak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:55
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1823978A
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US2068949A
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US1932679A
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US2070900A
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US2052581A
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US2031934A
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US2177843A
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US2254342A
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US2304998A
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US2315439A
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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) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |