US3713022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitance measurement by phase-controlled sampling
Assignee: GLENVILLE GAGE Co Inc
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Filing: 1971-12-17
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Granted: 1973-01-23
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Expires: 1991-12-17
Abstract
Abstract MEASUREMENT OF VALUES OF UNKNOWN CAPACITORS WHILE CONNECTED IN PARALLEL WITH UNKNOWN RESISTORS BY TIMING THE MEASUREMENT TO OCCUR AT THE PHASE POINT WHERE THE RESISTOR CURRENT IS ZERO. THE TIMING IS PROVIDED BY A ZERO CROSSING AND SLOPE DETECTOR.
Inventors
- 👤 R Mcray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:42
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02; G01R27/26; G01R27/2605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |