US2423764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air navigation computer
Assignee: Individual
•
Filing: 1945-12-12
•
Granted: 1947-07-08
•
Expires: 1965-12-12
Abstract
No abstract record available.
Inventors
- 👤 Bruce C Flitton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:24
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/0005; G06G1/0052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |