US3018387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-saturating transistor circuit
Assignee: International Business Machines Corp
•
Filing: 1957-02-04
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Granted: 1962-01-23
•
Expires: 1977-02-04
Abstract
No abstract record available.
Inventors
- 👤 John W Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:57
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2823
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2629834A
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US2673936A
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US2778978A
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US2876366A
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US2880330A
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US2843761A
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US2851220A
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US2903604A
Cited
US2840728A
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US2903606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |