US3478286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for automatically testing computer memories
Assignee: International Business Machines Corp
•
Filing: 1965-07-01
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Granted: 1969-11-11
•
Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 James T Dervan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:03
CPC Classifications
G; G11; G11C; G11C29/00; G11C29/04; G11C29/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2920818A
Cited
US2996666A
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US3027542A
Cited
US3271674A
Cited
GB1000281A
Cited
US3252097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |