US2553642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerodynamic brake and automatic control system for aircraft
Assignee: Curtiss Wright Corp
•
Filing: 1948-08-26
•
Granted: 1951-05-22
•
Expires: 1968-08-26
Abstract
No abstract record available.
Inventors
- 👤 Bruce G Eaton
- 👤 William J Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:11
CPC Classifications
B; B64; B64D; B64D27/00; B64D27/02; B64D27/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1028336A
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US1412807A
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US2158598A
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US2421870A
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US2398421A
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GB563433A
Cited
GB563319A
Cited
US2387795A
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US2460843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |