Patent US3042904A successfully refreshed from Google Patents.
US3042904A
Expired / Lapsed
US
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Logical and memory elements and circuits
Assignee: International Business Machines Corp
•
Filing: 1956-11-09
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Granted: 1962-07-03
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Expires: 1976-11-09
Abstract
No abstract record available.
Inventors
- 👤 Andrew E Brennemann
- 👤 Jr Ralph B De Lano
- 👤 Donald R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:04
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/185; G; G06; G06F; G06F5/00; G06F5/01; G06F5/015; G11; G11C; G11C11/00; G11C11/21; G11C11/22; G11C19/00; G11C8/00; G11C8/005; H01; H01G; H01G7/00; H01G7/02; H03M; H03M7/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |