US3262064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature-stable differential amplifier
Assignee: Fairchild Semiconductor Corp
•
Filing: 1962-12-03
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Granted: 1966-07-19
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 David F Hilbiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:50
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/45; H03F3/45071; H03F3/45479
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A METHOD FOR REDUCING THE TEMPERATURE SENSITIVITY OF A TWO-CHANNEL DIFFERENTIAL AMPLIFIER HAVING AT LEAST ONE TRANSISTOR IN EACH CHANNEL, SAID TRANSISTORS HAVING A BASE, A COLLECTOR, AND AN EMITTER, WHICH COMPRISES: SETTING THE COLLECTOR CURRENTS LC1 AND CL2 SO THAT THEY ARE APPROXIMATELY RELATED BY THE EQUATION
Claim 2
Independent Claim
48 words
A METHOD FOR REDUCING THE TEMPERATURE SENSITIVITY OF A TWO-CHANNEL DIFFERENTIAL AMPLIFIER HAVING AT LEAST ONE TRANSISTOR IN EACH CHANNEL, SAID TRANSISTORS HAVING A BASE, A COLLECTOR, AND AN EMITTER, WHICH COMPRISES: SETTING THE COLLECTOR CURRENTS LC1 AND CL2 SO THAT THEY ARE APPROXIMATELY RELATED BY THE EQUATION
References Cited (Backward Citations)
US3003113A
Cited
US3077566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |