Patent US2806158A successfully refreshed from Google Patents.
US2806158A
Expired / Lapsed
US
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Magnetic torque transmitting devices
Assignee: Unisys Corp
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Filing: 1954-12-27
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Granted: 1957-09-10
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Expires: 1974-12-27
Abstract
No abstract record available.
Inventors
- 👤 John L Emery
- 👤 Robert T W Liang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:57
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/06; H02K49/065; Y; Y10; Y10S; Y10S310/00; Y10S310/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |