US2706801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic field compensation system
Assignee: Individual
•
Filing: 1944-08-08
•
Granted: 1955-04-19
•
Expires: 1964-08-08
Abstract
No abstract record available.
Inventors
- 👤 Walter E Tolles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:50
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21970E
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US1362612A
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US1892826A
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US2252059A
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US2308566A
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US2346830A
Cited
US2412617A
Cited
US2468554A
Cited
US2468968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-18 | 1958-10-18 | 1959-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-18 | 1962-10-18 | 1963-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-18 | 1966-10-18 | 1967-04-19 | $7700.00 | Window Closed / Lapsed |