US3451644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical or short take-off aerodyne of high translation speed
Assignee: CHARLES MARCHETTI SOC
•
Filing: 1966-03-23
•
Granted: 1969-06-24
•
Expires: 1986-03-23
Abstract
No abstract record available.
Inventors
- 👤 Charles Joseph Marchetti
- 👤 Theodor Hugo Laufer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:54
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025; B64C27/00; B64C27/02; B64C27/021; B64C27/023; B64C27/026; B64C27/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2023760A
Cited
US2008843A
Cited
US2486672A
Cited
US2601104A
Cited
US2620623A
Cited
US2653778A
Cited
US2600715A
Cited
US2716460A
Cited
US3104083A
Cited
US2743072A
Cited
US2964263A
Cited
US3146970A
Cited
US3159360A
Cited
US3259341A
Cited
US3327969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |