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US2942240A
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US
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Magnetic memory systems using multiapertured storage elements
Assignee: RCA Corp
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Filing: 1954-09-13
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Granted: 1960-06-21
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Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Jan A Rajchman
- 👤 Arthur W Lo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:22
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2701095A
Cited
US2614167A
Cited
US2741757A
Cited
US2700703A
Cited
US2784391A
Cited
US2902676A
Cited
US2724103A
Cited
US2732542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |