US2836731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation control system
Assignee: Leeds and Northrup Co
•
Filing: 1954-08-16
•
Granted: 1958-05-27
•
Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 Jr William G Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:47
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/38; H02J3/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050338A
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US2039426A
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US2010594A
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US2113164A
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US2366968A
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US2367746A
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US2656977A
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US2688728A
Cited
FR1083932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |