US3548288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus for electric alternators having means for initial excitation build-up
Assignee: Newage Lyon Ltd
•
Filing: 1968-07-19
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Granted: 1970-12-15
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Expires: 1988-07-19
Abstract
No abstract record available.
Inventors
- 👤 Peter J Wyles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:16
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/38; H02P9/08; H02P9/26; H02P9/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3074004A
Cited
US3378753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |