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US3040248A
Expired / Lapsed
US
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Self-balancing flux-gate magnetometer
Assignee: Individual
•
Filing: 1958-10-30
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Granted: 1962-06-19
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Expires: 1978-10-30
Abstract
No abstract record available.
Inventors
- 👤 William A Geyger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:37
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2410039A
Cited
US2468554A
Cited
US2752564A
Cited
US2516696A
Cited
US2832041A
Cited
US2942180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |