US2563757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
All-movable horizontal tail
Assignee: Lockheed Martin Corp
•
Filing: 1945-07-23
•
Granted: 1951-08-07
•
Expires: 1965-07-23
Abstract
No abstract record available.
Inventors
- 👤 John W Thorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:33
CPC Classifications
B; B64; B64C; B64C13/00; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1802226A
Cited
GB304129A
Cited
US1766025A
Cited
GB496054A
Cited
GB519337A
Cited
US2313800A
Cited
GB542944A
Cited
US2357465A
Cited
US2435922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |