Patent UST953012I4 successfully refreshed from Google Patents.
UST953012I4
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current amplifier
Assignee: RCA Corp
•
Filing: 1975-12-10
•
Granted: 1976-12-07
•
Expires: 1995-12-10
Abstract
Abstract in a current mirror amplifier (CMA) circuit the desired gain may not be realized because of the effects of the base currents of the transistors comprising the CMA. A resistance of appropriate value is added in series with the base of a transistor in the input path thereby varying the base-emitter junction voltage of an output current determining transistor in the CMA output path which in turn modifies this output current in a manner so as to reduce the effects of the base currents.
Inventors
- 👤 Jonathan Samuel Radovsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:13
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/08; G05F3/10; G05F3/16; G05F3/20; G05F3/26; G05F3/265
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-07 | 1980-06-07 | 1980-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-07 | 1984-06-07 | 1984-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-07 | 1988-06-07 | 1988-12-07 | $7700.00 | Window Closed / Lapsed |