US3237119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isolation amplifier having high linearity and an effective zero input capacitance over a wide frequency range
Assignee: Solid State Systems Inc
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Filing: 1962-03-26
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Granted: 1966-02-22
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Gewirtz Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:31
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/50; H03F1/00; H03F1/30; H03F1/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |