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US2665860A
Expired / Lapsed
US
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Aircraft control system for operating auxiliary power source at take-off
Assignee: Rohr Inc
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Filing: 1951-07-14
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Granted: 1954-01-12
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Expires: 1971-07-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Bancroft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:08
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0615; G05D1/063; B; B64; B64D; B64D27/00; B64D27/02; B64D27/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2529508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |