US2424118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously recording the path of flight of aircraft
Assignee: International Business Machines Corp
•
Filing: 1943-04-29
•
Granted: 1947-07-15
•
Expires: 1963-04-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick Q Rast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/14; G01C21/20; G01C21/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518534A
Cited
US1310201A
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US1433985A
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US1732718A
Cited
US1873126A
Cited
US1985265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-14 | 1951-01-13 | 1951-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-14 | 1955-01-13 | 1955-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-14 | 1959-01-13 | 1959-07-15 | $7700.00 | Window Closed / Lapsed |