US2953774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core memory having magnetic core selection gates
Assignee: Individual
•
Filing: 1954-08-13
•
Granted: 1960-09-20
•
Expires: 1974-08-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Slutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:10
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2734182A
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US2666151A
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US2863135A
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US2691155A
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US2769925A
Cited
US2781503A
Cited
US2779934A
Cited
US2691157A
Cited
US2871444A
Cited
US2784390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |