US3456255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft inertial drift correction by a ground station
Assignee: Dornier System GmbH
•
Filing: 1967-11-21
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Granted: 1969-07-15
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Expires: 1987-11-21
Abstract
No abstract record available.
Inventors
- 👤 Ernst Wieland
- 👤 Gunter Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:01
CPC Classifications
G; G01; G01C; G01C25/00; F; F41; F41G; F41G7/00; F41G7/20; F41G7/30; F41G7/34; F41G7/36; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/165; G01C21/1652; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3008668A
Cited
US3028592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |