US2591395A
Expired / Lapsed
US
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Magnetic torque device
Assignee: General Electric Co
•
Filing: 1949-08-20
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Granted: 1952-04-01
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Expires: 1969-08-20
Abstract
No abstract record available.
Inventors
- 👤 Gardell L Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:08
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/02; B65H59/04; H; H02; H02K; H02K49/00; H02K49/06; H02K49/065; B65H2403/00; B65H2403/70; B65H2403/72; B65H2403/724; B65H2403/7241; B65H2403/725; B65H2403/7254; B65H2555/00; B65H2555/20; B65H2555/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190508570A
Cited
US912504A
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GB189905A
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US1903832A
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US2068820A
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GB446159A
Cited
US2183404A
Cited
US2361239A
Cited
US2528271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |