Patent US1917317A successfully refreshed from Google Patents.
US2467566A
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US
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Message information storage device
Assignee: AT&T Teletype Corp
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Filing: 1943-09-20
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Granted: 1949-04-19
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Expires: 1963-09-20
Abstract
No abstract record available.
Inventors
- 👤 Louis M Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:08
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/02; H04L12/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1620664A
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US1813908A
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US1872842A
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US1962136A
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US2080100A
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US2105016A
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US2356145A
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US2298519A
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US2351004A
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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) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |