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US2437135A
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US
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Airplane landing gear and emergency release mechanism therefor
Assignee: Boeing Co
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Filing: 1943-11-05
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Granted: 1948-03-02
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Expires: 1963-11-05
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Steinhoff
- 👤 James W Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:38
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/02; B64C25/08; B64C25/10; B64C25/18; B64C25/26; B64C25/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1940836A
Cited
FR815281A
Cited
GB494557A
Cited
US2224481A
Cited
US2326020A
Cited
US2280185A
Cited
US2278910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |