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US3480928A
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Magnetizable memory element having a plurality of read-only data states
Assignee: Unisys Corp
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Filing: 1967-09-21
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Granted: 1969-11-25
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Expires: 1987-09-21
Abstract
No abstract record available.
Inventors
- 👤 Alan D Kaske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:50
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA674392A
Cited
US3111652A
Cited
GB982677A
Cited
US3387289A
Cited
US3154768A
Cited
US3427600A
Cited
US3366937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |