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Patent US2989732A successfully refreshed from Google Patents.
US2989732A
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Time sequence addressing system
Assignee: International Business Machines Corp
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Filing: 1955-05-24
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Granted: 1961-06-20
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Expires: 1975-05-24
Abstract
No abstract record available.
Inventors
- 👤 Donald R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
G; G11; G11C; G11C8/00; G11C8/005; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014; G11C11/06021; G11C11/06028; G11C11/06035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2635229A
Cited
US2736880A
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US2736881A
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US2717373A
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US2806155A
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US2750580A
Cited
US2769968A
Cited
US2931014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |