Patent US3205371A successfully refreshed from Google Patents.
US3205371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two terminal device switching circuit employing a single clock
Assignee: International Business Machines Corp
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Filing: 1962-01-02
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Granted: 1965-09-07
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Slobodzinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:54
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A LOGIC CIRCUIT COMPRISING FIRST AND SECOND DEVICES, EACH DEVICE HAVING TWO REGIONS IN ITS OPERATING RANGE WHICH EXHIBIT A POSITIVE RESISTANCE AND A REGION BETWEEN THEM WHICH EXHIBITS A NEGATIVE RESISTANCE, EACH DEVICE HAVING AT LEAST FIRST AND SECOND TERMINALS, SAID DEVICES ADAPTED TO RECEIVE INPUT INFORMATION AND PROVIDE OUTPUT INFORMATION IN TRANSLATED FORM, MEANS FOR COUPLING FIRST TERMINALS OF THE DEVICES TOGETHER, THE SECOND TERMINAL OF THE SECOND DEVICE CONNECTED TO A REFERENCE POTENTIAL, AND A PULSE SOURCE HAVING A FIRST AND SECOND TERMINAL, THE FIRST TERMINAL CONNECTED TO THE SECOND TERMINAL OF THE FIRST DEVICE AND TO THE FIRST TERMINAL OF THE SECOND DEVICE, THE SECOND TERMINAL OF THE PULSE SOURCE CONNECTED TO THE REFRENCE POTENTIAL, SAID PULSE SOURCE CONTROLLING THE TRANSLATION OF INPUT INFORMATION THROUGH THE DEVICES IN A UNILATERAL DIRECTION.
Claim 2
Dependent Claim
135 words
A LOGIC CIRCUIT COMPRISING FIRST AND SECOND DEVICES, EACH DEVICE HAVING TWO REGIONS IN ITS OPERATING RANGE WHICH EXHIBIT A POSITIVE RESISTANCE AND A REGION BETWEEN THEM WHICH EXHIBITS A NEGATIVE RESISTANCE, EACH DEVICE HAVING AT LEAST FIRST AND SECOND TERMINALS, SAID DEVICES ADAPTED TO RECEIVE INPUT INFORMATION AND PROVIDE OUTPUT INFORMATION IN TRANSLATED FORM, MEANS FOR COUPLING FIRST TERMINALS OF THE DEVICES TOGETHER, THE SECOND TERMINAL OF THE SECOND DEVICE CONNECTED TO A REFERENCE POTENTIAL, AND A PULSE SOURCE HAVING A FIRST AND SECOND TERMINAL, THE FIRST TERMINAL CONNECTED TO THE SECOND TERMINAL OF THE FIRST DEVICE AND TO THE FIRST TERMINAL OF THE SECOND DEVICE, THE SECOND TERMINAL OF THE PULSE SOURCE CONNECTED TO THE REFRENCE POTENTIAL, SAID PULSE SOURCE CONTROLLING THE TRANSLATION OF INPUT INFORMATION THROUGH THE DEVICES IN A UNILATERAL DIRECTION.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |