US3411027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet excited electric machine
Assignee: Siemens AG
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Filing: 1965-07-08
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Granted: 1968-11-12
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Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Rosenberg Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:36
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/02; H02K21/04; H02K21/046; H02K19/00; H02K19/16; H02K19/26; H02K21/042; H02K21/12; H02K21/14
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |