US3435365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monolithically fabricated operational amplifier device with self-drive
Assignee: International Business Machines Corp
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Filing: 1965-10-01
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Granted: 1969-03-25
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Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 James C Greeson Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:59
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/14; H; H03; H03F; H03F3/00; H03F3/45; H03F3/45071; H03F3/45076; H03F3/4508; H03F3/45085; H03F3/45479; H03F3/45484; H03F3/45488; H03F3/45493; H03F3/45502; H03F2203/00; H03F2203/45; H03F2203/45408; H03F2203/45612; H03F2203/45702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3241078A
Cited
US3290520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |