US3239754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film magnetometer
Assignee: Texas Instruments Inc
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Filing: 1963-10-09
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Granted: 1966-03-08
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Expires: 1983-10-09
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Odom
- 👤 Jr Forrest G West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:46
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/04; G01R33/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
MEANS FOR MEASURING THE INTENSITY OF AN AMBIENT MAGNETIC FIELD COMPRISING A THIN PLANAR FILM OF FERROMAGNETIC MATERIAL, SAID FILM BEING UNIAXIALLY ANISOTROPIC, A WINDING ABOUT THE FILM HAVING AN AXIS IN THE PLANE OF SAID FILM, MEANS FOR PRODUCING AN ALTERNATING MAGNETIC FIELD THROUGH THE FILM IN THE PLANE THEREOF TO GENERATE AN ALTERNATING CURRENT IN SAID WINDING, SAID ALTERNATING CURRENT HAVING A CHARACTERISTIC WHICH VARIES WITH THE INTENSITY OF THE AMBIENT MAGNETIC FIELD IN A PREDETERMINED DIRECTION IN THE PLANE OF THE FILM, THE DIRECTION OF THE ALTERNATING MAGNETIC FIELD BEING ORTHOGONALLY RELATED TO THE DIRECTION OF THE AMBIENT MAGNETIC FIELD AND ONE OF SAID FIELDS BEING PERPENDICULAR TO THE ANISOTROPIC AXIS OF THE FILM, AND MEANS COUPLED TO SAID WINDING FOR DETECTING VARIATIONS IN THE CHARACTERISTIC OF SAID ALTERNATING CURRENT IN RESPONSE TO VARIATIONS OF THE AMBIENT MAGNETIC FIELD IN SAID PREDETERMINED DIRECTION IN THE PLANE OF THE FILM.
Claim 2
Dependent Claim
152 words
MEANS FOR MEASURING THE INTENSITY OF AN AMBIENT MAGNETIC FIELD COMPRISING A THIN PLANAR FILM OF FERROMAGNETIC MATERIAL, SAID FILM BEING UNIAXIALLY ANISOTROPIC, A WINDING ABOUT THE FILM HAVING AN AXIS IN THE PLANE OF SAID FILM, MEANS FOR PRODUCING AN ALTERNATING MAGNETIC FIELD THROUGH THE FILM IN THE PLANE THEREOF TO GENERATE AN ALTERNATING CURRENT IN SAID WINDING, SAID ALTERNATING CURRENT HAVING A CHARACTERISTIC WHICH VARIES WITH THE INTENSITY OF THE AMBIENT MAGNETIC FIELD IN A PREDETERMINED DIRECTION IN THE PLANE OF THE FILM, THE DIRECTION OF THE ALTERNATING MAGNETIC FIELD BEING ORTHOGONALLY RELATED TO THE DIRECTION OF THE AMBIENT MAGNETIC FIELD AND ONE OF SAID FIELDS BEING PERPENDICULAR TO THE ANISOTROPIC AXIS OF THE FILM, AND MEANS COUPLED TO SAID WINDING FOR DETECTING VARIATIONS IN THE CHARACTERISTIC OF SAID ALTERNATING CURRENT IN RESPONSE TO VARIATIONS OF THE AMBIENT MAGNETIC FIELD IN SAID PREDETERMINED DIRECTION IN THE PLANE OF THE FILM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |