US2401989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ordnance
Assignee: Bell Aircraft Corp
•
Filing: 1942-10-15
•
Granted: 1946-06-11
•
Expires: 1962-10-15
Abstract
No abstract record available.
Inventors
- 👤 John C Trotter
- 👤 Leonard W Holland
- 👤 Gerard E Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:06
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/54; F41A9/61; F41A9/64; F41A9/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-06-10 | 1949-12-10 | 1950-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-10 | 1953-12-10 | 1954-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-10 | 1957-12-10 | 1958-06-11 | $7700.00 | Window Closed / Lapsed |