Patent US3479523A successfully refreshed from Google Patents.
US3479523A
Expired / Lapsed
US
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Integrated nor logic circuit
Assignee: International Business Machines Corp
•
Filing: 1966-09-26
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Granted: 1969-11-18
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Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Peter Pleshko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/094; H03K19/096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3292008A
Cited
US3406298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |