Patent US3522548A successfully refreshed from Google Patents.
US3522548A
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Temperature tracking of emitter coupled differential amplifier stage
Assignee: RCA Corp
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Filing: 1968-05-03
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Granted: 1970-08-04
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Expires: 1988-05-03
Abstract
No abstract record available.
Inventors
- 👤 Robert C Heuner
- 👤 Irwin Ostroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:11
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/45; H03F3/45071; H03F3/45479; H03F3/34; H03F3/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3290520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |