Patent US2933267A successfully refreshed from Google Patents.
US2933267A
Expired / Lapsed
US
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Gyroscopically stabilized navigational reference device
Assignee: North American Aviation Corp
•
Filing: 1954-07-19
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Granted: 1960-04-19
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Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 John M Slater
- 👤 Robert M Benson
- 👤 Vernon A Tauscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:20
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/166; Y; Y10; Y10T; Y10T74/00; Y10T74/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2263232A
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US2348928A
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US2414291A
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US2606448A
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US2591697A
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US2762123A
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US2637914A
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US2617695A
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US2752792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |