US3411068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brushless alternators of the selfregulating and self-exciting type
Assignee: Selectra Ltd
•
Filing: 1966-01-03
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Granted: 1968-11-12
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Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Krebs Ernst Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:39
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/36; H02K; H02K19/00; H02K19/16; H02K19/26; H02K19/30; H02P9/38
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 |