US3185967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two dimensional selection system for read only memory
Assignee: International Business Machines Corp
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Filing: 1962-02-23
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Granted: 1965-05-25
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Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 Henry R Foglia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:09
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/04
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |