Patent US2798205A successfully refreshed from Google Patents.
US2798205A
Expired / Lapsed
US
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Magnetically controllable transmission system
Assignee: AT&T Inc
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Filing: 1952-05-28
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Granted: 1957-07-02
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Expires: 1972-05-28
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:35
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/165; H01P1/17; H01P1/174
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051537A
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US2454530A
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US2483818A
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US2610250A
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US2607031A
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US2644930A
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US2745069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |