Patent US3131381A successfully refreshed from Google Patents.
US3131381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hall-effect memory device
Assignee: Individual
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Filing: 1962-06-01
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Granted: 1964-04-28
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank R Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:52
CPC Classifications
G; G11; G11C; G11C27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A MEMORY DEVICE COMPRISING, HALL GENERATOR MEANS INCLUDING A HALL PLATE HAVING HALL VOLTAGE OUTPUT TERMINALS AND MEANS FOR GENERATING A MAGNETIC FIELD, MAGNETIZING MEANS ARRANEGED TO MODIFY SUCH MAGNETIC FIELD, MEANS FOR APPLYING AN INPUT SIGNAL TO SAID MAGNETIZING MEANS, MEANS FOR APPLYING SUCH HALL VOLTAGE OUTPUT TO SAID MAGNETIZING MEANS IN DIRECTION TO OPPOSE THE INPUT SIGNAL TO THE HALL-GENERATOR AND PROVIDE A DIFFERENCE SIGNAL THEREFROM, SAID DIFFERENCE SIGNAL BEING APPLIED TO DRIVE SAID MAGNETIZING MEANS FOR MODIFICATION OF SUCH MAGNETIC FIELD, AND CONNECTION MEANS FOR DERIVING THE HALL-GENERATOR VOLTAGE AS AN OUTPUT SIGNAL.
Claim 2
Dependent Claim
96 words
A MEMORY DEVICE COMPRISING, HALL GENERATOR MEANS INCLUDING A HALL PLATE HAVING HALL VOLTAGE OUTPUT TERMINALS AND MEANS FOR GENERATING A MAGNETIC FIELD, MAGNETIZING MEANS ARRANEGED TO MODIFY SUCH MAGNETIC FIELD, MEANS FOR APPLYING AN INPUT SIGNAL TO SAID MAGNETIZING MEANS, MEANS FOR APPLYING SUCH HALL VOLTAGE OUTPUT TO SAID MAGNETIZING MEANS IN DIRECTION TO OPPOSE THE INPUT SIGNAL TO THE HALL-GENERATOR AND PROVIDE A DIFFERENCE SIGNAL THEREFROM, SAID DIFFERENCE SIGNAL BEING APPLIED TO DRIVE SAID MAGNETIZING MEANS FOR MODIFICATION OF SUCH MAGNETIC FIELD, AND CONNECTION MEANS FOR DERIVING THE HALL-GENERATOR VOLTAGE AS AN OUTPUT SIGNAL.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |