US3543066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discoidal electric motor with compensating windings
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1968-12-23
•
Granted: 1970-11-24
•
Expires: 1988-12-23
Abstract
No abstract record available.
Inventors
- 👤 Park French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:38
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132; H02K23/00; H02K23/02; H02K23/22; H02K29/00; H02K29/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1266388A
Cited
US2798175A
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US2721282A
Cited
US3159761A
Cited
US3072814A
Cited
US3223867A
Cited
US3445691A
Cited
US3428840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |