US2559451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Landing gear with drag strut dynamic damper
Assignee: Lockheed Martin Corp
•
Filing: 1947-09-12
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Granted: 1951-07-03
•
Expires: 1967-09-12
Abstract
No abstract record available.
Inventors
- 👤 Jerome F Mcbrearty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:11
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/02; B64C25/08; B64C25/10; B64C25/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US483529A
Cited
US1445414A
Cited
US1600154A
Cited
US1864134A
Cited
US2364865A
Cited
US2437135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |