US3042850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical field excitation circuits for alternators
Assignee: GENER AC CORP
•
Filing: 1959-08-03
•
Granted: 1962-07-03
•
Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Robert D Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:01
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE678248C
Cited
US2052318A
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US2540600A
Cited
US2482588A
Cited
US2531062A
Cited
FR1050847A
Cited
US2719259A
Cited
US2892143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |