Patent US2614760A successfully refreshed from Google Patents.
US2614760A
Expired / Lapsed
US
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Control system for magnetic recorders
Assignee: IIT Research Institute
•
Filing: 1945-06-29
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Granted: 1952-10-21
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Expires: 1965-06-29
Abstract
No abstract record available.
Inventors
- 👤 Marion S Danisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:56
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/44; G11B15/02; G11B15/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US771861A
Cited
US737998A
Cited
US909414A
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US947148A
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US1540121A
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US1393500A
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GB297327A
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US1939181A
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US1789607A
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US1886856A
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US2351005A
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US2412318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |