US3096487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directly coupled transistor amplifier with positive and negative feedback
Assignee: Individual
•
Filing: 1961-04-03
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Granted: 1963-07-02
•
Expires: 1981-04-03
Abstract
No abstract record available.
Inventors
- 👤 Willis L Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:56
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A TRANSISTOR AMPLIFIER COMPRISING AN INPUT AND OUTPUT TRANSISTOR OF ONE CONDUCTIVITY TYPE, AN ODD NUMBER OF INTERMEDIATE CONNECTED IN CASCADE BETWEEN SAID INPUT AND OUTPUT TRANSISTORS, EACH OF SAID TRANSISTORS HAVING BASE COLLECTOR AND EMITTER ELEMENTS AND BEING OF OPPOSITE CONDUCTIVITY TYPE TO ANY ADJACENT TRANSISTOR, THE BASE OF EACH TRANSISTOR FOLLOWING SAID INPUT TRANSISTOR CONNECTED TO THE COLLECTOR OF THE ADJACENT 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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |