US2534824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscopic navigational device
Assignee: ANNA A JONES
•
Filing: 1947-07-09
•
Granted: 1950-12-19
•
Expires: 1967-07-09
Abstract
No abstract record available.
Inventors
- 👤 Anna A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:16
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/166; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1232; Y10T74/125; Y10T74/1261; Y10T74/1264; Y10T74/1282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20701E
Cited
US1390471A
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US1589039A
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US1986807A
Cited
US1972882A
Cited
US1999646A
Cited
US2086896A
Cited
US2087961A
Cited
US2133809A
Cited
US2378744A
Cited
US2393473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |