US3713019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic scanpoint matrix having means for detecting electrical failures therein
Assignee: AG Communication Systems Corp
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Filing: 1971-08-05
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Granted: 1973-01-23
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Expires: 1991-08-05
Abstract
Abstract AN ELECTRONIC SCANPOINT MATRIX OF THE RESISTOR-CAPACITORDIODE TYPE FOR SUPERVISION OF A PLURALITY OF SIGNAL LINES HAS ONE SIDE OF EACH SIGNAL LINE AND EACH SCANPOINT SELECTIVELY COUPLED IN COMMON VIA RELAY CONTACTS TO A SOURCE OF BIASING VOLTAGE OR GROUND. THE RELAY CONTACTS TO A OPERATED TO SELECTIVELY APPLY A BIASING VOLTAGE OR GROUND POTENTIAL TO THE SCANPOINTS AND SIGNAL LINES TO PROVIDE A MATRIX OUTPUT WHICH IS REPRESENTATIVE OF ELECTRICAL FAILURES IN DRIVER TRANSFORMERS, DRIVER TRANSISTORS, SCANPOINT CAPACITORS, SCANPOINT DIODES OR SENSE LINE OUTPUT TRANSFORMERS.
Inventors
- 👤 Bosse J Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:59
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/08
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 |