Patent US3387289A successfully refreshed from Google Patents.
US3387289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic thin film readout system
Assignee: Siemens AG
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Filing: 1962-12-19
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Granted: 1968-06-04
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Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Walter Karlheinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:17
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; G11B2005/0002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
AN ARRANGEMENT FOR THE REGENERATION OF MAGNETIC CONDITIONS, DECOMPOSED BY FREQUENT READING OPERATIONS, IN A STORAGE ELEMENT COMPRISING AN INDIVIDUAL THIN MAGNETIZABLE LAYER HAVING A PREFERENTIAL AXIS OF MAGNETIZATION, COMPRISING MEANS DISPOSED ADJACENT TO, AND COOPERABLE WITH SAID LAYER FOR THE CONDUCTION OF WRITE-IN IMPULSES TO AND READ-OUT IMPULSES FROM SAID LAYER, MEANS FOR THE CONDUCTION OF READING AND REGENERATING IMPULSES TO SAID LAYER, AND IMPULSE GENERATION MEANS OPERATIVELY CONNECTED TO SAID SECOND MENTIONED MEANS, WHICH GENERATES READING IMPULSES OF ONE POLARITY AND REGENERATING IMPULSES OF OPPOSITE POLARITY, WHICH ARE THEREBY CONDUCTED TO SAID THIN LAYER WITH THE RESPECTIVE REGENERATING IMPULSES BEING OPERATIVE TO GENERATE A MAGNETIC FIELD IN SAID LAYER WHICH IS OPPOSITELY DIRECTED TO THE MAGNETIC FIELD GENERATED IN SUCH LAYER BY THE READING IMPULSES, OPERATIVE TO EFFECT A REGENERATION OF THE ORIGINAL MAGNETIC CONDITION OF SAID THIN MAGNETIZED LAYER, WHEREIN SAID IMPULSE GENERATION MEANS IS CONSTRUCTED TO ALLOCATE ONE REGENERATING IMPULSE TO A SERIES OF READING IMPULSES.
Claim 2
Dependent Claim
160 words
AN ARRANGEMENT FOR THE REGENERATION OF MAGNETIC CONDITIONS, DECOMPOSED BY FREQUENT READING OPERATIONS, IN A STORAGE ELEMENT COMPRISING AN INDIVIDUAL THIN MAGNETIZABLE LAYER HAVING A PREFERENTIAL AXIS OF MAGNETIZATION, COMPRISING MEANS DISPOSED ADJACENT TO, AND COOPERABLE WITH SAID LAYER FOR THE CONDUCTION OF WRITE-IN IMPULSES TO AND READ-OUT IMPULSES FROM SAID LAYER, MEANS FOR THE CONDUCTION OF READING AND REGENERATING IMPULSES TO SAID LAYER, AND IMPULSE GENERATION MEANS OPERATIVELY CONNECTED TO SAID SECOND MENTIONED MEANS, WHICH GENERATES READING IMPULSES OF ONE POLARITY AND REGENERATING IMPULSES OF OPPOSITE POLARITY, WHICH ARE THEREBY CONDUCTED TO SAID THIN LAYER WITH THE RESPECTIVE REGENERATING IMPULSES BEING OPERATIVE TO GENERATE A MAGNETIC FIELD IN SAID LAYER WHICH IS OPPOSITELY DIRECTED TO THE MAGNETIC FIELD GENERATED IN SUCH LAYER BY THE READING IMPULSES, OPERATIVE TO EFFECT A REGENERATION OF THE ORIGINAL MAGNETIC CONDITION OF SAID THIN MAGNETIZED LAYER, WHEREIN SAID IMPULSE GENERATION MEANS IS CONSTRUCTED TO ALLOCATE ONE REGENERATING IMPULSE TO A SERIES OF READING IMPULSES.
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |