US2866150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant frequency hydraulic drive generator system
Assignee: General Electric Co
•
Filing: 1953-10-26
•
Granted: 1958-12-23
•
Expires: 1973-10-26
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:52
CPC Classifications
H; H02; H02P; H02P29/00; H02P29/0016; F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1325434A
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GB201235A
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US2509728A
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US2646755A
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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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |