US2649264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flight control system
Assignee: Unisys Corp
•
Filing: 1947-03-15
•
Granted: 1953-08-18
•
Expires: 1967-03-15
Abstract
No abstract record available.
Inventors
- 👤 John M Slater
- 👤 Wrigley Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:49
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/042; G05D1/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2115498A
Cited
US2066194A
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US2137974A
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US2190390A
Cited
US2439750A
Cited
US2371388A
Cited
US2464629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |