US3197748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic field sensing apparatus
Assignee: International Business Machines Corp
•
Filing: 1960-12-30
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Granted: 1965-07-27
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 George E Dailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:02
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G01; G01R; G01R33/00; G01R33/02; G11B2005/0002; G11B2005/0005; G11B2005/0021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
APPARATUS FOR DETECTING BINARY INFORMATION STORED IN A PLURALITY OF MAGNETIC FIELD PATTERNS INCLUDING MEANS FOR PROVIDING SAID MAGNETIC FIELD PATTERNS, A THERMOCOUPLE JUNCTION IN EACH OF SAID PATTERNS, SAID THERMOCOUPLE JUNCTION BEING ONE WHICH PROVIDES AN ALTERED VOLTAGE OUTPUT RESULTANT SOLELY FROM THE PRESENCE OF MAGNETIC FIELD THEREIN, AND VOLTAGE DETECTION MEANS FOR PROVIDING AN INDICATION OF THE BIT VALUE OF THE STORED BINARY INFORMATION IN EACH OF SAID MAGNETIC FIELD PATTERNS.
Claim 2
Dependent Claim
73 words
APPARATUS FOR DETECTING BINARY INFORMATION STORED IN A PLURALITY OF MAGNETIC FIELD PATTERNS INCLUDING MEANS FOR PROVIDING SAID MAGNETIC FIELD PATTERNS, A THERMOCOUPLE JUNCTION IN EACH OF SAID PATTERNS, SAID THERMOCOUPLE JUNCTION BEING ONE WHICH PROVIDES AN ALTERED VOLTAGE OUTPUT RESULTANT SOLELY FROM THE PRESENCE OF MAGNETIC FIELD THEREIN, AND VOLTAGE DETECTION MEANS FOR PROVIDING AN INDICATION OF THE BIT VALUE OF THE STORED BINARY INFORMATION IN EACH OF SAID MAGNETIC FIELD PATTERNS.
References Cited (Backward Citations)
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Cited
US2153378A
Cited
US2673326A
Cited
US2776406A
Cited
US2819456A
Cited
US2840801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |