US3559200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monitoring unit for signalling a specific condition in the circuitry supplying power to an electrical device
Assignee: Trinetics Inc
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Filing: 1968-02-08
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Granted: 1971-01-26
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Expires: 1988-02-08
Abstract
Abstract A MONITORING UNIT FOR SIGNALLING A SPECIFIC CONDITION IN THE POWER SUPPLY CIRCUITRY FOR AN ELECTRICAL DEVICE. THE UNIT HAS THREE TERMINALS. A FIRST SIGNALLING DEVICE IS CONNECTED BETWEEN THE FIRST AND THIRD TERMINALS. A SECOND SIGNALLING DEVICE IS CONNECTED BETWEEN THE SECOND AND THIRD TERMINALS. A THIRD SIGNALLING DEVICE IS CONNECTED BETWEEN THE FIRST AND SECOND TERMINALS. A BIASING CIRCUIT IS CONNECTED BETWEEN THE FIRST AND THIRD TERMINALS SO THAT THE MONITORING UNIT WILL ISSUE A SIGNAL INDICATING ONLY A SPECIFIC CONDITION IN THE POWER SUPPLY CIRCUITRY. THE MONITORING UNIT IS HOUSED IN A HOUSING.
Inventors
- 👤 Nole L Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:33
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/165; G01R19/16533; G01R19/16538; G01R19/16547
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |