US2579840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic steering mechanism for airplanes
Assignee: Societe dInventions Aeronautiques et Mechaniques SIAM SA
•
Filing: 1947-10-28
•
Granted: 1951-12-25
•
Expires: 1967-10-28
Abstract
No abstract record available.
Inventors
- 👤 Levy Rene Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:58
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/50; Y; Y10; Y10S; Y10S60/00; Y10S60/904
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |