US2408068A
Expired / Lapsed
US
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Automatic positional control of objects
Assignee: Sperry Gyroscope Co Inc
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Filing: 1941-12-31
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Granted: 1946-09-24
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Expires: 1961-12-31
Abstract
No abstract record available.
Inventors
- 👤 Harvard L Hull
- 👤 William S Gorrill
- 👤 William F Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:27
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/10; B60W; B60W10/00; B60W10/04; B60W10/10; B60W10/101; B60W10/103; F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/47; F41; F41G; F41G5/00; F41G5/06
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) | 1949-09-23 | 1950-03-25 | 1950-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-09-23 | 1954-03-25 | 1954-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-09-23 | 1958-03-25 | 1958-09-24 | $7700.00 | Window Closed / Lapsed |