Patent US4095258A successfully refreshed from Google Patents.
Patent US2516660A successfully refreshed from Google Patents.
Patent US2945649A successfully refreshed from Google Patents.
US2945649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft control systems
Assignee: Rolls Royce PLC
•
Filing: 1956-08-22
•
Granted: 1960-07-19
•
Expires: 1976-08-22
Abstract
No abstract record available.
Inventors
- 👤 Metcalf Eric
- 👤 Cook Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0091
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1826938A
Cited
US2507304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |