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US3311352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetostrictive transducers
Assignee: FREQUENCY CONTROL PRODUCTS Inc A CORP OF NY
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Filing: 1965-03-25
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Granted: 1967-03-28
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Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 Dostal Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:41
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A MAGNETOSTRICTIVE TRANSDUCER COMPRISING: (A) A CORE FABRICATED OF A SHEET OF MAGNETOSTRICTIVE MATERIAL CORRUGATED INTO A SERIES OF PARALLEL PLEATS, SAID PLEATS BEING CIRCUMFERENTIALLY ARRANGED TO DEFINE A HOLLOW CYLINDER, THE END PLEATS IN SAID CYLINDER BEING INSULATED FROM EACH OTHER, (B) A COIL SURROUNDING SAID CORE, AND (C) MEANS TO POLARIZE SAID CORE INCLUDING POLE PIECES DISPOSED ABOVE AND BELOW SAID COIL IN OPERATIVE ASSOCIATION WITH SAID CORE, AND A PERMANENT MAGNET WHOSE POLES ENGAGE SAID POLE PIECES.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |