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US3501751A
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High speed core memory with low level switches for sense windings
Assignee: Unisys Corp
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Filing: 1965-12-06
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Granted: 1970-03-17
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Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Charles P Gerrard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:21
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014; G11C11/06021; G11C11/06028; G11C11/06035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3015808A
Cited
US3161860A
Cited
US3193807A
Cited
US3231876A
Cited
US3317850A
Cited
US3401351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |