US2814676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape-stepping device for high-speed magnetic recording
Assignee: Anderson Nichols & Co
•
Filing: 1954-09-23
•
Granted: 1957-11-26
•
Expires: 1974-09-23
Abstract
No abstract record available.
Inventors
- 👤 House Frank Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:08
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; G11B15/18; G11B15/20; G11B15/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1941597A
Cited
US2004893A
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US2286072A
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US2365691A
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US2431646A
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US2396409A
Cited
US2521623A
Cited
US2553410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |