Patent US2203421A successfully refreshed from Google Patents.
US3471794A
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US
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Operational amplifier having temperature compensation
Assignee: RTX Corp
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Filing: 1966-06-10
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Granted: 1969-10-07
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Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Louis M Gugliotti Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:40
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/30; H03F3/3069; H03F3/3071; H03F3/3076; H03F3/34; H03F3/343; H03F3/45; H03F3/45071; H03F3/45479
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3077566A
Cited
US3153203A
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US3262064A
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US3363191A
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US3290520A
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US3364434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |