Patent US3513538A successfully refreshed from Google Patents.
US3513538A
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Method of making a filamentary magnetic memory using rigid printed circuit cards
Assignee: Stromberg Carlson Corp
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Filing: 1968-01-22
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Granted: 1970-05-26
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Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus F Bryzinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:15
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/02; G11C11/00; G11C11/02; G11C11/04; 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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |