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Patent US3305845A successfully refreshed from Google Patents.
US3305845A
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Magnetic memory core and method
Assignee: Unisys Corp
•
Filing: 1963-02-01
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Granted: 1967-02-21
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Expires: 1983-02-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth T Grace
- 👤 Robert J Teply
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:41
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/1862; D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/0015; B01J2219/00155; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A MEMORY ELEMENT COMPRISING: A NONMAGNETIZABLE BASE MEMBER HAVING AT LEAST FIRST AND SECOND SPACED-APART APERTURES THERETHROUGH FORMING A WEB THEREBETWEEN, A MAGNETIZABLE MATERIAL AFFIXED TO THE WALLS OF SAID APERTURES AND TO SAID WEB FORMING FLUX PATHS AROUND SAID APERTURE WALLS AND SAID WEB, A PRINTED CIRCUIT CONDUCTOR DISPOSED UPON SAID WEB THREADING SAID WEB FORMED FLUX PATH, AND INSULATING MATERIAL ELECTRICALLY INSULATING SAID PRINTED CIRCUIT CONDUCTOR FROM SAID WEB FORMED FLUX PATH.
Claim 2
Dependent Claim
74 words
A MEMORY ELEMENT COMPRISING: A NONMAGNETIZABLE BASE MEMBER HAVING AT LEAST FIRST AND SECOND SPACED-APART APERTURES THERETHROUGH FORMING A WEB THEREBETWEEN, A MAGNETIZABLE MATERIAL AFFIXED TO THE WALLS OF SAID APERTURES AND TO SAID WEB FORMING FLUX PATHS AROUND SAID APERTURE WALLS AND SAID WEB, A PRINTED CIRCUIT CONDUCTOR DISPOSED UPON SAID WEB THREADING SAID WEB FORMED FLUX PATH, AND INSULATING MATERIAL ELECTRICALLY INSULATING SAID PRINTED CIRCUIT CONDUCTOR FROM SAID WEB FORMED FLUX PATH.
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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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |