US3548653A
Expired / Lapsed
US
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Direction and velocity determining apparatus
Assignee: United Control Corp
•
Filing: 1969-03-24
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Granted: 1970-12-22
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Expires: 1989-03-24
Abstract
No abstract record available.
Inventors
- 👤 Victor B Corey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:46
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/02; G01P13/025; B; B64; B64D; B64D43/00; B64D43/02; G01P5/00; G01P5/24; G01P5/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3188862A
Cited
US3222926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |