US2709235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cycle counting control system for synchronous dynamoelectric machine
Assignee: Allis Chalmers Corp
•
Filing: 1952-06-09
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Granted: 1955-05-24
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Expires: 1972-06-09
Abstract
No abstract record available.
Inventors
- 👤 Baude John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:39
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/08; H02H7/0805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2200105A
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US2245189A
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US2304542A
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US2308304A
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US2439920A
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US2408226A
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US2424227A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |