US3424874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire identifier
Assignee: AT&T Inc
•
Filing: 1966-03-03
•
Granted: 1969-01-28
•
Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Charles A Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:11
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/229; G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
APPARATUS FOR IDENTIFYING A WIRE FROM AMONG MANY WIRES COMPRISING: CONNECTOR MEANS FOR CONTACTING AT ONE LOCATION THE WIRE TO BE IDENTIFIED AT ANOTHER LOCATION, AMPLIFIER MEANS, PROBE MEANS, DETECTOR MEANS, AND ELECTRICAL MEANS CONNECTING SAID PROBE MEANS AND SAID AMPLIFIER MEANS AS WELL AS SAID CONNECTOR MEANS INTO CONSECUTIVE CASCADE RELATION, SAID ELECTRICAL MEANS CONNECTING SAID DETECTOR MEANS TO RESPOND TO SAID AMPLIFIER MEANS, SAID AMPLIFIER MEANS HAVING SUFFICIENT AMPLIFICATION TO CAUSE INCREASING OSCILLATIONS IN RESPONSE TO SAID PROBE MEANS APPROACHING THE WIRE TO BE IDENTIFIED AT THE OTHER LOCATION.
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |