Patent US2782398A successfully refreshed from Google Patents.
US2782398A
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US
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Apparatus for photoelectrically cataloging digital data on magnetic tape
Assignee: Raytheon Co
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Filing: 1953-08-28
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Granted: 1957-02-19
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Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Charles F West
- 👤 Turk John E De
- 👤 John H Macneill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:51
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/18; G11B20/1806; G11B15/00; G11B15/02; G11B5/00; G11B2005/0002; G11B2005/0005; G11B2220/00; G11B2220/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1517110A
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US2124906A
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US2616626A
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US2677728A
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US2666911A
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US2594358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |