US3270327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Word selection matrix
Assignee: Unisys Corp
•
Filing: 1961-02-07
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Granted: 1966-08-30
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Expires: 1981-02-07
Abstract
No abstract record available.
Inventors
- 👤 William W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:47
CPC Classifications
G; G11; G11C; G11C8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE COMBINATION COMPRISING: A MAGNETIC DRIVE ELEMENT OF THE TYPE HAVING AN EASY AXIS AND A HARD AXIS OF MAGNETIZATION AND WHEREIN THE MAGNETIZATION MAY BE ROTATED TO DIFFERENT DIRECTION IN RESPONSE TO MAGNETIC FIELDS; MEANS FOR GENERATING A TRANSVERSE BIAS FIELD FOR HOLDING THE MAGNETIZATION OF SAID DRIVE ELEMENT TO THE HARD AXIS; MEANS FOR GENERATING A LONGITUDINAL BIAS FIELD; MEANS OPERATIVE DURING THE PRESENCE OF SAID LONGITUDINAL BIAS FIELD FOR RENDERING SAID TRANSVERSE BIAS MEANS INOPERATIVE TO CONTROL THE MAGNETIZATION OF SAID DRIVE ELEMENT; MAGNETIC MEMORY MEANS; AND MEANS FOR DRIVING SAID MEMORY MEANS; SAID DRIVING MEANS COMPRISING AN ELECTRICAL CONDUCTOR FOR SENSING THE FLUX CHANGE AT SAID DRIVE ELEMENT WHEN SAID THIRD MEANS RENDERS SAID FIRST MEANS INOPERATIVE.
Claim 2
Dependent Claim
121 words
THE COMBINATION COMPRISING: A MAGNETIC DRIVE ELEMENT OF THE TYPE HAVING AN EASY AXIS AND A HARD AXIS OF MAGNETIZATION AND WHEREIN THE MAGNETIZATION MAY BE ROTATED TO DIFFERENT DIRECTION IN RESPONSE TO MAGNETIC FIELDS; MEANS FOR GENERATING A TRANSVERSE BIAS FIELD FOR HOLDING THE MAGNETIZATION OF SAID DRIVE ELEMENT TO THE HARD AXIS; MEANS FOR GENERATING A LONGITUDINAL BIAS FIELD; MEANS OPERATIVE DURING THE PRESENCE OF SAID LONGITUDINAL BIAS FIELD FOR RENDERING SAID TRANSVERSE BIAS MEANS INOPERATIVE TO CONTROL THE MAGNETIZATION OF SAID DRIVE ELEMENT; MAGNETIC MEMORY MEANS; AND MEANS FOR DRIVING SAID MEMORY MEANS; SAID DRIVING MEANS COMPRISING AN ELECTRICAL CONDUCTOR FOR SENSING THE FLUX CHANGE AT SAID DRIVE ELEMENT WHEN SAID THIRD MEANS RENDERS SAID FIRST MEANS INOPERATIVE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |