Patent US3397347A successfully refreshed from Google Patents.
US3397347A
Expired / Lapsed
US
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Magnetic displacement transducer
Assignee: Individual
•
Filing: 1966-05-16
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Granted: 1968-08-13
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Hoeppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:53
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006; G; G01; G01F; G01F23/00; G01F23/30; G01F23/64; G01F23/68; G01F23/70; H01H51/00; H01H51/30; H01H51/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |