Patent US3354435A successfully refreshed from Google Patents.
US3354435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission line control of transistor selection matrix
Assignee: International Business Machines Corp
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Filing: 1965-02-19
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Granted: 1967-11-21
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Expires: 1985-02-19
Abstract
No abstract record available.
Inventors
- 👤 James K Picciano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:18
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/64; H03K17/62; H03K17/6221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A TRANSISTOR SWITCH MATRIX HAVING AT LEAST ONE ROW OF TRANSISTORS CHARACTERIZED BY A DRIVE LINE CONNECTING ALL OF THE SAME TERMINALS OF EACH OF THE TRANSISTORS IN A ROW, SAID DRIVE LINE BEING INDUCTIVE AND FORMING IN COMBINATION WITH THE STRAY REACTANCES OF SAID TRANSISTORS A TRANSMISSION LINE HAVING A RESISTIVE CHARACTERISTIC IMPEDANCE, AND A PAIR OF RESISTANCES EACH EQUAL TO SAID CHARACTERISTIC IMPEDANCE TERMINATING RESPECTIVELY BOTH ENDS OF SAID TRANSMISSION LINE.
Claim 2
Dependent Claim
73 words
A TRANSISTOR SWITCH MATRIX HAVING AT LEAST ONE ROW OF TRANSISTORS CHARACTERIZED BY A DRIVE LINE CONNECTING ALL OF THE SAME TERMINALS OF EACH OF THE TRANSISTORS IN A ROW, SAID DRIVE LINE BEING INDUCTIVE AND FORMING IN COMBINATION WITH THE STRAY REACTANCES OF SAID TRANSISTORS A TRANSMISSION LINE HAVING A RESISTIVE CHARACTERISTIC IMPEDANCE, AND A PAIR OF RESISTANCES EACH EQUAL TO SAID CHARACTERISTIC IMPEDANCE TERMINATING RESPECTIVELY BOTH ENDS OF SAID TRANSMISSION LINE.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |