Patent US2514822A successfully refreshed from Google Patents.
US2514822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helicopter automobile
Assignee: Individual
•
Filing: 1949-08-19
•
Granted: 1950-07-11
•
Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank H Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:21
CPC Classifications
B; B64; B64C; B64C37/00; 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) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |