US2811651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternator control system
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1954-06-29
•
Granted: 1957-10-29
•
Expires: 1974-06-29
Abstract
No abstract record available.
Inventors
- 👤 Allen E Lepley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:18
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/04; H02P2101/00; H02P2101/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US986943A
Cited
US1063546A
Cited
US1063548A
Cited
US1093116A
Cited
US2590023A
Cited
US2719517A
Cited
US2614229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |