US3361216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damping devices
Assignee: Westland Group PLC
•
Filing: 1965-04-19
•
Granted: 1968-01-02
•
Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 George E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/008; B64C27/00; B64C27/51; Y; Y10; Y10S; Y10S416/00; Y10S416/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE1066276B
Cited
US2457749A
Cited
US2604953A
Cited
US2636726A
Cited
GB787848A
Cited
US2774553A
Cited
US2936860A
Cited
US3052328A
Cited
US3076643A
Cited
US3107752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |