US5023478B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complementary emitter follower drivers
Assignee: International Business Machines Corp
•
Filing: 1990-03-13
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Granted: 1993-06-01
•
Expires: 2010-03-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:42
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/01; H03K19/013; H03F; H03F1/00; H03F1/30; H03F1/307; H03F1/308; H03F3/00; H03F3/30; H03F3/3001; H03F3/3008; H03F3/3069; H03F3/3071; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/66; H03K17/665; H03K17/666; H03K17/667
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-31 | 1996-11-30 | 1997-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-31 | 2000-11-30 | 2001-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-31 | 2004-11-30 | 2005-06-01 | $7700.00 | Window Closed / Lapsed |