US1873126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously recording the path of flight of aircraft
Assignee: FIRM IKARUS INTERNATIONALE PAT
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Filing: 1929-08-30
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Granted: 1932-08-23
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Expires: 1949-08-30
Abstract
No abstract record available.
Inventors
- 👤 Hugershoff Reinhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/14
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) | 1935-08-23 | 1936-02-22 | 1936-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-23 | 1940-02-22 | 1940-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-23 | 1944-02-22 | 1944-08-23 | $7700.00 | Window Closed / Lapsed |