US3222656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic memory arrangement
Assignee: Telefonaktiebolaget LM Ericsson AB
•
Filing: 1960-08-25
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Granted: 1965-12-07
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Expires: 1980-08-25
Abstract
No abstract record available.
Inventors
- 👤 Olsson Sven Arne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:13
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/08; G11C11/10; G11C7/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2952840A
Cited
US2961745A
Cited
US3060410A
Cited
US2979701A
Cited
US2985768A
Cited
US3134964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |