US2828467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and devices for determining the magnetic properties of specimens of magnetic material
Assignee: General Electric Co
•
Filing: 1952-03-26
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Granted: 1958-03-25
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Expires: 1972-03-26
Abstract
No abstract record available.
Inventors
- 👤 Lynn H Stauffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:43
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/12; G01R33/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1440470A
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US2133725A
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US2124578A
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US1985277A
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US2186826A
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US2351201A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |