US3345518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-emitter bipolar transistors utilized as binary counter and logic gate
Assignee: Plessey UK Ltd
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Filing: 1964-06-05
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Granted: 1967-10-03
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Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Philip M Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:11
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/088; H03F; H03F3/00; H03F3/34; H03F3/343; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73; H03K3/00; H03K3/01; H03K3/013; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/288; H03K3/35; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A CIRCUIT ARRANGEMENT INCLUDING A BIPOLAR TRANSISTOR HAVING A COLLECTOR ELECTRODE, A BASE ELECTRODE AND AT LEAST TWO EMITTER ELECTRODES, EACH CAPABLE OF TRANSISTOR CO-OPERATION WITH THE COLLECTOR AND BASE ELECTRODES, MEANS FOR BIASING, WITH RESPECT TO THE BASE ELECTRODES, AT LEAST ONE OF SAID EMITTER ELECTRODES FOR OPERATION IN A FORWARD CONDUCTIVE MODE, AND MEANS FOR REVERSELY BIASING, WITH RESPECT TO THE BASE ELECTRODE, AT LEAST ONE OTHER OF SAID EMITTER ELECTRODES TO OPERATE IN A REVERSE BREAKDOWN CONDUCTION MODE OVER AT LEAST A PART OF THE OPERATING RANGE OF THE TRANSISTOR.
Claim 2
Dependent Claim
93 words
A CIRCUIT ARRANGEMENT INCLUDING A BIPOLAR TRANSISTOR HAVING A COLLECTOR ELECTRODE, A BASE ELECTRODE AND AT LEAST TWO EMITTER ELECTRODES, EACH CAPABLE OF TRANSISTOR CO-OPERATION WITH THE COLLECTOR AND BASE ELECTRODES, MEANS FOR BIASING, WITH RESPECT TO THE BASE ELECTRODES, AT LEAST ONE OF SAID EMITTER ELECTRODES FOR OPERATION IN A FORWARD CONDUCTIVE MODE, AND MEANS FOR REVERSELY BIASING, WITH RESPECT TO THE BASE ELECTRODE, AT LEAST ONE OTHER OF SAID EMITTER ELECTRODES TO OPERATE IN A REVERSE BREAKDOWN CONDUCTION MODE OVER AT LEAST A PART OF THE OPERATING RANGE OF THE TRANSISTOR.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |