US2981499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft with auxiliary launching aircraft
Assignee: All American Engineering Co
•
Filing: 1956-12-11
•
Granted: 1961-04-25
•
Expires: 1976-12-11
Abstract
No abstract record available.
Inventors
- 👤 Ii Raymond B Janney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:46
CPC Classifications
B; B64; B64D; B64D5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1650346A
Cited
GB292826A
Cited
FR653604A
Cited
FR37253E
Cited
US2621000A
Cited
US2681776A
Cited
FR1075613A
Cited
US2921756A
Cited
US2845237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |