US2930546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet aircraft convertible for vertical ascent and horizontal flight
Assignee: VIBRANE Corp
•
Filing: 1954-05-19
•
Granted: 1960-03-29
•
Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Wibault Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0066
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1389797A
Cited
US1585281A
Cited
US1741578A
Cited
FR694497A
Cited
GB377237A
Cited
FR801230A
Cited
US2077471A
Cited
US2364677A
Cited
US2384893A
Cited
US2377835A
Cited
US2461435A
Cited
US2502045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |