US2561558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device for control surfaces on airplanes
Assignee: Consolidated Vultee Aircraft Corp
•
Filing: 1945-05-08
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Granted: 1951-07-24
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Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Bright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:01
CPC Classifications
B; B64; B64C; B64C9/00; B64C9/02; B64C13/00; B64C13/24; B64C13/26; B64C13/28; B64C13/30; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US751547A
Cited
GB110883A
Cited
DE461734C
Cited
US2191543A
Cited
US2284683A
Cited
US2246203A
Cited
US2203396A
Cited
US2371673A
Cited
US2409762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |