US2468425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane wing folding mechanism
Assignee: Individual
•
Filing: 1945-07-20
•
Granted: 1949-04-26
•
Expires: 1965-07-20
Abstract
No abstract record available.
Inventors
- 👤 Carpenter Joseph David
- 👤 Rex J West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:57
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/56; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US699732A
Cited
US2153667A
Cited
US2166564A
Cited
GB490964A
Cited
US2181501A
Cited
US2289224A
Cited
US2352074A
Cited
US2372852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |