US2423501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable landing gear lock for aircraft
Assignee: Republic Aviation Corp
•
Filing: 1942-12-29
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Granted: 1947-07-08
•
Expires: 1962-12-29
Abstract
No abstract record available.
Inventors
- 👤 Johnson Seth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:28
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/02; B64C25/08; B64C25/10; B64C25/18; B64C25/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1550622A
Cited
GB218596A
Cited
GB428539A
Cited
US2184057A
Cited
FR832835A
Cited
GB518130A
Cited
GB543609A
Cited
US2292671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |