US2814794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-destructive sensing of magnetic cores
Assignee: International Business Machines Corp
•
Filing: 1955-08-17
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Granted: 1957-11-26
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Expires: 1975-08-17
Abstract
No abstract record available.
Inventors
- 👤 Edwin W Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:59
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/08; H; H03; H03K; H03K17/00; H03K17/51; H03K17/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2284406A
Cited
US2741757A
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 |