US2914763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doppler-inertial navigation data system
Assignee: General Precision Laboratory Inc
•
Filing: 1953-11-05
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Granted: 1959-11-24
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Expires: 1973-11-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Ivan A Greenwood
- 👤 France B Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371626A
Cited
US2577061A
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US2619623A
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US2591697A
Cited
US2613071A
Cited
US2676770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |