US3375504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for interrogating and detecting the stored information of magnetic cores
Assignee: NEC Corp
•
Filing: 1964-01-23
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Granted: 1968-03-26
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Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Ihara Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:40
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H10D84/615; G; G11; G11C; G11C15/00; G11C15/02; Y; Y10; Y10S; Y10S148/00; Y10S148/085; Y10S148/136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2768367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |