Patent US2651550A successfully refreshed from Google Patents.
US2651550A
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US
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Magnetic bearing suspension for electric measuring instruments
Assignee: Sangamo Electric Co
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Filing: 1951-03-02
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Granted: 1953-09-08
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Expires: 1971-03-02
Abstract
No abstract record available.
Inventors
- 👤 Sharp Frank Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:35
CPC Classifications
G; G01; G01R; G01R11/00; G01R11/02; G01R11/12; G01R11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2209969A
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US2160405A
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US2275839A
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US2333647A
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US2439970A
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GB580896A
Cited
US2446579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |