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US2526358A
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US
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Demagnetizing device
Assignee: Indiana Steel Products Co
•
Filing: 1946-10-18
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Granted: 1950-10-17
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Expires: 1966-10-18
Abstract
No abstract record available.
Inventors
- 👤 Hugh A Howell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:41
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/325; G11B5/02; G11B5/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US873083A
Cited
DE322252C
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US1828190A
Cited
US2105016A
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US2230913A
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CH214652A
Cited
FR883022A
Cited
US2351011A
Cited
US2380392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |