US3134026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-collector transistor forming bistable circuit
Assignee: International Business Machines Corp
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Filing: 1960-08-19
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Granted: 1964-05-19
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Expires: 1980-08-19
Abstract
No abstract record available.
Inventors
- 👤 Earle John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:17
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H10; H10D; H10D84/00; H10D84/60; H10D84/676
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN ELECTRONIC TRIGGER CIRCUIT COMPRISING A TRANSISTOR HAVING A BASE, AN EMITTER AND A FIRST AND SECOND COLLECTOR, SAID TRANSISTOR BEING OPERABLE TO ADAPT A FIRST STABLE STATE IN RESPONSE TO ONE LEVEL OF EMITTER CURRENT AND A SECOND STABLE STATE IN RESPONSE TO A HIGHER LEVEL OF EMITTER CURRENT, SAID FIRST COLLECTOR BEING CONDUCTIVE IN SAID FIRST STABLE STATE AND SAID SECOND COLLECTOR BEING SUBSTANTIALLY CUT-OFF,
Claim 2
Dependent Claim
67 words
AN ELECTRONIC TRIGGER CIRCUIT COMPRISING A TRANSISTOR HAVING A BASE, AN EMITTER AND A FIRST AND SECOND COLLECTOR, SAID TRANSISTOR BEING OPERABLE TO ADAPT A FIRST STABLE STATE IN RESPONSE TO ONE LEVEL OF EMITTER CURRENT AND A SECOND STABLE STATE IN RESPONSE TO A HIGHER LEVEL OF EMITTER CURRENT, SAID FIRST COLLECTOR BEING CONDUCTIVE IN SAID FIRST STABLE STATE AND SAID SECOND COLLECTOR BEING SUBSTANTIALLY CUT-OFF,
References Cited (Backward Citations)
US2992337A
Cited
DE1035779B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |