US2530467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration dampening drive system for aircraft
Assignee: Individual
•
Filing: 1947-02-11
•
Granted: 1950-11-21
•
Expires: 1967-02-11
Abstract
No abstract record available.
Inventors
- 👤 William E Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:06
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/001; F; F16; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/121; F16F15/124; Y; Y10; Y10S; Y10S416/00; Y10S416/50; Y10T; Y10T403/00; Y10T403/45; Y10T403/451; Y10T403/455
Claims Analysis
Total Claims: 0
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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) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |