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US3436918A
Expired / Lapsed
US
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Magnetohydrodynamic motor-generator
Assignee: United States Department of the Air Force
•
Filing: 1966-11-08
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Granted: 1969-04-08
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Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Brogan
- 👤 William E Powers Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:39
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08; Y; Y10; Y10S; Y10S376/00; Y10S376/911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2643349A
Cited
GB738511A
Cited
US3102852A
Cited
US3099131A
Cited
US3201622A
Cited
US3229156A
Cited
US3360666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |