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Patent US3518631A successfully refreshed from Google Patents.
US3518631A
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US
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Associative memory system which can be addressed associatively or conventionally
Assignee: International Business Machines Corp
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Filing: 1967-01-13
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Granted: 1970-06-30
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Expires: 1987-01-13
Abstract
No abstract record available.
Inventors
- 👤 Arwin B Lindquist
- 👤 Wilbur D Pricer
- 👤 Robert R Seeber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:47
CPC Classifications
G; G11; G11C; G11C15/00; G11C15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3221308A
Cited
US3196407A
Cited
US3248708A
Cited
US3191156A
Cited
US3195109A
Cited
US3339181A
Cited
US3376555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |