US3428827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High and low voltage level threshold circuit employing two differential amplifier comparators
Assignee: The General Electric Company PLC
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Filing: 1965-07-01
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Granted: 1969-02-18
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Allan David Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:43
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893; G; G01; G01R; G01R29/00; G01R29/02; G11; G11C; G11C7/00; G11C7/06; H03K5/00; H03K5/01; H03K5/08
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) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |