US3168657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse distributor utilizing one bistable device per stage
Assignee: AT&T Inc
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Filing: 1962-09-12
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Granted: 1965-02-02
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Expires: 1982-09-12
Abstract
No abstract record available.
Inventors
- 👤 George W Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:16
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/15; B; B07; B07B; B07B1/00; B07B1/12; B07B1/14; B07B1/15; H03K17/00; H03K17/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A STEPPING SWITCH COMPRISING, IN COMBINATION, A PLURALITY OF BISTABLE SEMICONDUCTOR DEVICES ARRANGED IN A LINEAR ARRAY, EACH DEVICE HAVING AN ANODE, A CATHODE AND A GATE ELECTRODE, THE SERIAL COMBINATION OF A LOAD IMPEDANCE AND A RESISTANCE CONNECTED BETWEEN THE CATHODE OF EACH DEVICE AND A COMMON JUNCTION, RESET MEANS CONNECTED TO THE GATE ELECTRODE OF EACH REMAINING DEVICE CONARRAY, THE GATE ELECTRODES OF EACH REMAINING DEVICE CONNECTED TO THE JUNCTION FORMED BY THE CONNECTION OF SAID LOAD IMPEDANCE AND SAID RESISTANCE OF THE NEXT PRECEDING DEVICE, AND MEANS FOR PROVIDING LOW MAGNITUDE MEMORY CURRENT AND HIGH MAGNITUDE DRIVE CURRENT TO THE ANODES OF EACH OF SAID DEVICES IN A TIME SEQUENCE CORRESPONDING TO THEIR POSITION IN SAID ARRAY.
Claim 2
Dependent Claim
120 words
A STEPPING SWITCH COMPRISING, IN COMBINATION, A PLURALITY OF BISTABLE SEMICONDUCTOR DEVICES ARRANGED IN A LINEAR ARRAY, EACH DEVICE HAVING AN ANODE, A CATHODE AND A GATE ELECTRODE, THE SERIAL COMBINATION OF A LOAD IMPEDANCE AND A RESISTANCE CONNECTED BETWEEN THE CATHODE OF EACH DEVICE AND A COMMON JUNCTION, RESET MEANS CONNECTED TO THE GATE ELECTRODE OF EACH REMAINING DEVICE CONARRAY, THE GATE ELECTRODES OF EACH REMAINING DEVICE CONNECTED TO THE JUNCTION FORMED BY THE CONNECTION OF SAID LOAD IMPEDANCE AND SAID RESISTANCE OF THE NEXT PRECEDING DEVICE, AND MEANS FOR PROVIDING LOW MAGNITUDE MEMORY CURRENT AND HIGH MAGNITUDE DRIVE CURRENT TO THE ANODES OF EACH OF SAID DEVICES IN A TIME SEQUENCE CORRESPONDING TO THEIR POSITION IN SAID ARRAY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |