US2519094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting magnetic disturbances
Assignee: LUNDBERG EXPLORATIONS Ltd
•
Filing: 1945-10-30
•
Granted: 1950-08-15
•
Expires: 1965-10-30
Abstract
No abstract record available.
Inventors
- 👤 Zuschlag Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:50
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/087; G01R; G01R33/00; G01R33/02; G01R33/028; G01R33/0283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2415808A
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US2382743A
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US2420580A
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US2438964A
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US2379716A
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US2440503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |