Patent US3218615A successfully refreshed from Google Patents.
US3218615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic memory system and solenoid therefor
Assignee: Automatic Electric Laboratories Inc
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Filing: 1962-05-23
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Granted: 1965-11-16
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 William A Reimer
- 👤 Konstanty E Krylow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:16
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A MAGNETIC MEMORY COMPRISING IN COMBINATION A PLURALITY OF ELONGATED MAGNETIC STORAGE ELEMENTS AND AT LEAST ONE SOLENOID EXTENDING TRANSVERSELY AND IN OVERLYING RELATION THERETO, SAID SOLENOID INCLUDING A SUBSTRATE OF INSULATING MATERIAL AND AN EXCITATION WINDING HAVING A SET OF INDIVIDUAL TURNS DISPOSD IN COPLANAR RELATIVELY CLOSELY SPACED RELATION ON SAID SUBSTRATE TO DEFINE STORAGE LOCATIONS AT THE INTERSECTIONS BETWEEN SAID WINDING AND SAID ELEMENTS AND HAVING CONNECTING MEANS FOR PERMITTING AN EXCITATION CURRENT TO BE DRIVEN SERIALLY THROUGH SAID SET OF COPLANAR TURNS SO THAT THE CURRENT THROUGH ADJACENT ONES OF SAID TURNS OF SAID WINDING FLOWS IN THE SAME DIRECTION, THEREBY TO CAUSE, UPON EXCITATION OF SAID WINDING, A CHANGE OF MAGNETIC STATE OF SAID ELONGATED STORAGE ELEMENTS AT SAID LOCATIONS.
Claim 2
Dependent Claim
124 words
A MAGNETIC MEMORY COMPRISING IN COMBINATION A PLURALITY OF ELONGATED MAGNETIC STORAGE ELEMENTS AND AT LEAST ONE SOLENOID EXTENDING TRANSVERSELY AND IN OVERLYING RELATION THERETO, SAID SOLENOID INCLUDING A SUBSTRATE OF INSULATING MATERIAL AND AN EXCITATION WINDING HAVING A SET OF INDIVIDUAL TURNS DISPOSD IN COPLANAR RELATIVELY CLOSELY SPACED RELATION ON SAID SUBSTRATE TO DEFINE STORAGE LOCATIONS AT THE INTERSECTIONS BETWEEN SAID WINDING AND SAID ELEMENTS AND HAVING CONNECTING MEANS FOR PERMITTING AN EXCITATION CURRENT TO BE DRIVEN SERIALLY THROUGH SAID SET OF COPLANAR TURNS SO THAT THE CURRENT THROUGH ADJACENT ONES OF SAID TURNS OF SAID WINDING FLOWS IN THE SAME DIRECTION, THEREBY TO CAUSE, UPON EXCITATION OF SAID WINDING, A CHANGE OF MAGNETIC STATE OF SAID ELONGATED STORAGE ELEMENTS AT SAID LOCATIONS.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |