US2628044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for aircraft surfaces
Assignee: Individual
•
Filing: 1946-07-25
•
Granted: 1953-02-10
•
Expires: 1966-07-25
Abstract
No abstract record available.
Inventors
- 👤 Harold I Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:37
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1071518A
Cited
FR577445A
Cited
US1671081A
Cited
GB321851A
Cited
GB422686A
Cited
GB467969A
Cited
US2201280A
Cited
US2323352A
Cited
US2402118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |