US2948489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Captive rotary wing aircraft and control system
Assignee: ALTOSCAN Co
•
Filing: 1956-04-10
•
Granted: 1960-08-09
•
Expires: 1976-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles C Miller
- 👤 Anthony J Ricci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:10
CPC Classifications
B; B64; B64C; B64C39/00; B64C39/02; B64C39/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US954574A
Cited
US1389925A
Cited
US2058161A
Cited
FR864986A
Cited
US2415071A
Cited
US2390307A
Cited
US2508683A
Cited
US2681190A
Cited
US2739416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |