US2686022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscope control system and apparatus for controlling dirigible craft
Assignee: Westinghouse Electric Corp
•
Filing: 1947-11-14
•
Granted: 1954-08-10
•
Expires: 1967-11-14
Abstract
No abstract record available.
Inventors
- 👤 Clinton R Hanna
- 👤 George R Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:48
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816; G05D1/085
Claims Analysis
Total Claims: 0
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US2315501A
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US2474618A
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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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |