Patent US3566367A successfully refreshed from Google Patents.
US3566367A
Expired / Lapsed
US
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Selection circuit
Assignee: International Business Machines Corp
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Filing: 1969-02-20
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Granted: 1971-02-23
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Expires: 1989-02-20
Abstract
Abstract THIS INVENTION PROVIDES AN ASSOCIATIVE MEMORY (OR OTHER ORDERED ARRAY OF ELECTRONIC CIRCUITS) WITH MEANS FOR STEPPING FROM WORD TO WORD THROUGH THE ARRAY FOR CERTAIN OPERATIONS AND A NOVEL CIRCUIT FOR BYPASSING DEFECTIVE WORDS. AN ARRAY WITH DEFECTIVE COMPONENTS REMAINS OPERABLE AT A REDUCED CAPACITY.
Inventors
- 👤 Peter A E Gardner
- 👤 Michael H Hallett
- 👤 Peter J Titman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:45
CPC Classifications
G; G11; G11C; G11C15/00; G11C15/04; G01; G01R; G01R19/00; G01R19/0038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |