US2909931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscope
Assignee: Sunoco Inc
•
Filing: 1952-10-22
•
Granted: 1959-10-27
•
Expires: 1972-10-22
Abstract
No abstract record available.
Inventors
- 👤 Edward W James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:43
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/34; G01C19/38; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261; Y10T74/1275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB108776A
Cited
US2421247A
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US2220055A
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US2412614A
Cited
US2410473A
Cited
US2561367A
Cited
GB623009A
Cited
US2524756A
Cited
US2597151A
Cited
US2552132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |