US3302039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gateable bridge network having power gain
Assignee: Massachusetts Institute of Technology
•
Filing: 1964-02-17
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Granted: 1967-01-31
•
Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Richard H Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:16
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; G; G06; G06F; G06F7/00; G06F7/60; G06F7/62; G06G; G06G7/00; G06G7/12; G06G7/14; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/68; H03M; H03M1/00; H03M1/12; H03M1/50; H03M1/66; H03M1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A BRIDGE NETWORK COMPRISING, INPUT MEANS, OUTPUT MEANS, FOUR TRANSISTORS, TWO OF WHICH ARE NPN TRANSISTORS, AND TWO OF WHICH ARE PNP TRANSISTORS, A FIRST GROUP OF SAID TRANSISTORS COMPRISING AN NPN TRANSISTOR AND A PNP TRANSISTOR HAVING THEIR BASES CONNECTED TOGETHER, A SECOND GROUP OF SAID TRANSISTORS COMPRISING AN NPN TRANSISTOR AND A PNP TRANSISTOR HAVING THEIR EMITTERS CONNECTED TOGETHER, SAID FIRST GROUP OF INTERCONNECTED TRANSISTORS HAVING THEIR EMITTERS CONNECTED TO THE BASES OF SAID SECOND GROUP OF INTERCONNECTED TRANSISTORS, POSITIVE AND NEGATIVE BIASING MEANS, SAID PNP TRANISTORS HAVING SAID NEGATIVE BIAS APPLIED TO ITS COLLECTORS, SAID NPN TRANSISTORS HAVING SAID POSITIVE BIAS APPLIED TO ITS COLLECTORS,
Claim 2
Dependent Claim
108 words
A BRIDGE NETWORK COMPRISING, INPUT MEANS, OUTPUT MEANS, FOUR TRANSISTORS, TWO OF WHICH ARE NPN TRANSISTORS, AND TWO OF WHICH ARE PNP TRANSISTORS, A FIRST GROUP OF SAID TRANSISTORS COMPRISING AN NPN TRANSISTOR AND A PNP TRANSISTOR HAVING THEIR BASES CONNECTED TOGETHER, A SECOND GROUP OF SAID TRANSISTORS COMPRISING AN NPN TRANSISTOR AND A PNP TRANSISTOR HAVING THEIR EMITTERS CONNECTED TOGETHER, SAID FIRST GROUP OF INTERCONNECTED TRANSISTORS HAVING THEIR EMITTERS CONNECTED TO THE BASES OF SAID SECOND GROUP OF INTERCONNECTED TRANSISTORS, POSITIVE AND NEGATIVE BIASING MEANS, SAID PNP TRANISTORS HAVING SAID NEGATIVE BIAS APPLIED TO ITS COLLECTORS, SAID NPN TRANSISTORS HAVING SAID POSITIVE BIAS APPLIED TO ITS COLLECTORS,
References Cited (Backward Citations)
US2860193A
Cited
US2955257A
Cited
US3098200A
Cited
US3077545A
Cited
US3155837A
Cited
US3175211A
Cited
US3157839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |