Patent US3668042A successfully refreshed from Google Patents.
US3668042A
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Process for producing magnetic transducer with narrow sensing tip
Assignee: Boeing North American Inc
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Filing: 1969-07-14
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Granted: 1972-06-06
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Expires: 1989-07-14
Abstract
Abstract A process for producing magnetic transducer comprising a relatively thin portion forming a sensing tip connected to a relatively thicker core portion including conductors wound around the core portion. The thin portion is separated in the region of its tip by a narrow gap filled with a material for forming a magnetic flux insulator.
Inventors
- 👤 William A Farrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:53
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/17; G11B5/1272; G11B5/187; G11B5/48; G11B5/4806; G11B5/4826; G11B5/58; G11B5/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49055
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |