Patent US3559055A successfully refreshed from Google Patents.
US3559055A
Expired / Lapsed
US
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Automatic conductor pair identification apparatus to permit identification of crossed conductor pairs by inhibiting the recycling of the identification apparatus
Assignee: AT&T Inc
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Filing: 1968-12-24
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Granted: 1971-01-26
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Expires: 1988-12-24
Abstract
Abstract AN AUTOMATIC CONDUCTOR PAIR IDENTIFIER UTILIZES A COUNTER TO CONTROL THE STEPPING OF A SIGNAL IN SEQUENCE TO THE CONDUCTOR PAIRS OF A MULTICONDUCTOR CABLE. UPON THE DETECTION OF THE SIGNAL OF A CONDUCTOR PAIR AT THE OTHER END OF THE CABLE THE COUNTER STOPS. THE COUNT AT WHICH THE COUNTER STOPS REPRESENTS THE IDENTIFICATION OF THE CONDUCTOR PAIR ON WHICH THE SIGNAL WAS DETECTED. IF A CROSSED CONDUCTOR PAIR IS DETECTED THE COUNTER IS CONTROLLED TO RESUME COUNTING WITHOUT BEING RESET IN ORDER TO DETERMINE THE HIGHER VALUE IDENTIFICATION NUMBER ASSOCIATED WITH THE CROSSED CONDUCTOR PAIR.
Inventors
- 👤 Harold K Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:29
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/60
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 |