Patent US3383526A successfully refreshed from Google Patents.
US3383526A
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Current driver circuit utilizing transistors
Assignee: International Business Machines Corp
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Filing: 1964-12-17
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Granted: 1968-05-14
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Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Andrew R Berding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:23
CPC Classifications
A; A21; A21C; A21C5/00; A21C5/02; A21C5/06; G; G09; G09F; G09F11/00; G09F11/30; G09F11/34; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/708; H03; H03F; H03F3/00; H03F3/68; H03H; H03H11/00; H03H11/02; H03H11/26; H03H11/265; H03H11/28; H03H2/00; H03H2/005; H03H2/008; H03K; H03K17/00; H03K17/04; H03K17/51; H03K17/56; H03K17/60; H03K19/00; H03K19/0175; H03K19/018; H03K19/01806; H03K5/00; H03K5/01; H03K5/04; H03K5/06; H04; H04B; H04B3/00; H04B3/02; H04B3/44; H04J; H04J3/00; H04J3/02; H04J3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA603877A
Cited
US2829282A
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US2995667A
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US3054906A
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US3141981A
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US3209171A
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US3302035A
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US3252100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |