US3555913A
Expired / Lapsed
US
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Apparatus for correcting mass unbalance in a gyro
Assignee: United States Department of the Air Force
•
Filing: 1969-01-16
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Granted: 1971-01-19
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Expires: 1989-01-16
Abstract
Abstract A GYRO MECHANISM HAVING A MAGNETIC MASS BALANCER LOCATED THEREIN. THE MAGNETIC MASS BALANCER BEING CAPABLE OF ADJUSTMENT EXTERNALLY OF THE GYRO MECHANISM AND THEREBY FINDING UTILITY ON FLOATED AS WELL AS UNFLOATED GYROS.
Inventors
- 👤 Robert F Martin
- 👤 Edward J Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:27
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/30; G01C; G01C25/00; G01C25/005; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |