US2746256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controls for multiple engine power plants
Assignee: FELL DEVELOPMENTS Ltd
•
Filing: 1949-08-31
•
Granted: 1956-05-22
•
Expires: 1969-08-31
Abstract
No abstract record available.
Inventors
- 👤 Fell Louis Frederick Rudston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:50
CPC Classifications
B; B61; B61C; B61C17/00; B61C17/12; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1953486A
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US1868130A
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US2283431A
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US2444364A
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US2534168A
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US2589788A
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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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |