US3016507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film magneto resistance device
Assignee: International Business Machines Corp
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Filing: 1959-09-14
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Granted: 1962-01-09
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Expires: 1979-09-14
Abstract
No abstract record available.
Inventors
- 👤 Paul M Grant
- 👤 Penney Robert Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
H; H10; H10N; H10N50/00; H10N50/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A MAGNETO RESISTANCE ACTIVE DEVICE COMPRISING A FIRST LAYER OF FERRO-MAGNETIC MATERIAL IN THE FORM OF A THIN PLATING, FIRST INSULATION MEANS IN THE COATING FORM SUPERPOSED IN DEPOSITED CONTACT ON SAID FIRST LAYER, MAGNETIZING CURRENT CONDUCTOR MEANS INTHIN PLATING FORM SUPERPOSED IN DEPOSITED CONTACT ON SAID FIRST INSULATION MEANS, OUTPUT CURRENT CARRYING MEANS IN THIN DEPOSITED FILM FORM SUPERPOSED IN DEPOSITED CONTACT ON SAID FIRST INSULATION MEANS AND COMPRISING MAGNETO RESISTIVE SEMICONDUCTOR MEANS, SECOND INSULATION MEANS IN THIN COATING FROM SUPERPOSED IN DEPOSITED CONTACT ON SAID MAGNETIZING CURRENT CONDUCTOR MEANS AND ON SAID CURRENT CARRYING MEANS, AND A SECOND LAYER OF FERRO-MAGNETIC MATERIAL IN THE FORM OF A THIN PLATING SUPERPOSED IN DEPOSITED CONTACT ON SAID SECOND INSULATION MEANS, SAID FIRST AND SECOND LAYERS BEING ORIENTED TO EMBRACE SAID CONDUCTOR MEANS TO BE MAGNETIZED BY THE FIELD OF CURRENT THROUGH SAID CONDUCTOR MEANS AND TO FORM MAGNETIC POLES EMBRACING SAID SEMI-CONDUCTOR MEANS, AND THE THICKNESS OF SAID LAYERS, SAID INSULATION MEANS, SAID CURRENT CONDUCTOR MEANS, AND SAID CURRENT CARRYING MEANS BEING IN THE ORDER OF 100,000 ANGSTROMS, 1,000 ANGSTROMS, 7,000 ANGSTROMS, AND 7,000 ANGSTROMS, RESPECTIVELY.
Claim 2
Dependent Claim
186 words
A MAGNETO RESISTANCE ACTIVE DEVICE COMPRISING A FIRST LAYER OF FERRO-MAGNETIC MATERIAL IN THE FORM OF A THIN PLATING, FIRST INSULATION MEANS IN THE COATING FORM SUPERPOSED IN DEPOSITED CONTACT ON SAID FIRST LAYER, MAGNETIZING CURRENT CONDUCTOR MEANS INTHIN PLATING FORM SUPERPOSED IN DEPOSITED CONTACT ON SAID FIRST INSULATION MEANS, OUTPUT CURRENT CARRYING MEANS IN THIN DEPOSITED FILM FORM SUPERPOSED IN DEPOSITED CONTACT ON SAID FIRST INSULATION MEANS AND COMPRISING MAGNETO RESISTIVE SEMICONDUCTOR MEANS, SECOND INSULATION MEANS IN THIN COATING FROM SUPERPOSED IN DEPOSITED CONTACT ON SAID MAGNETIZING CURRENT CONDUCTOR MEANS AND ON SAID CURRENT CARRYING MEANS, AND A SECOND LAYER OF FERRO-MAGNETIC MATERIAL IN THE FORM OF A THIN PLATING SUPERPOSED IN DEPOSITED CONTACT ON SAID SECOND INSULATION MEANS, SAID FIRST AND SECOND LAYERS BEING ORIENTED TO EMBRACE SAID CONDUCTOR MEANS TO BE MAGNETIZED BY THE FIELD OF CURRENT THROUGH SAID CONDUCTOR MEANS AND TO FORM MAGNETIC POLES EMBRACING SAID SEMI-CONDUCTOR MEANS, AND THE THICKNESS OF SAID LAYERS, SAID INSULATION MEANS, SAID CURRENT CONDUCTOR MEANS, AND SAID CURRENT CARRYING MEANS BEING IN THE ORDER OF 100,000 ANGSTROMS, 1,000 ANGSTROMS, 7,000 ANGSTROMS, AND 7,000 ANGSTROMS, RESPECTIVELY.
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) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |